odd, composite · 135th positive integer
The number 135
135 is an odd composite number. It is the 135th positive integer.
Quick reference
| Prime factorization | 3 × 3 × 3 × 5 |
| Divisors | 1, 3, 5, 9, 15, 27, 45, 135 |
| Binary | 10000111 |
| Hexadecimal | 0x87 |
| Roman numeral | CXXXV |
| Digit sum | 9 |
| Properties | odd, composite |
Reading 135 in NumGrid context
135 is one of the data points covered by this site’s integer properties and number-guessing puzzles dataset. The detail above comes directly from classical number theory plus NumGrid solver-derived puzzle statistics; the context that follows situates the headline numbers against the broader distribution across positive integers within the NumGrid target pool.
Every number on this page links back to classical number theory plus NumGrid solver-derived puzzle statistics; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for 135 is typically a peer within positive integers within the NumGrid target pool with similar size, similar exposure, or similar geography — not the national-level summary alone.
Frequently asked
Is 135 a prime number?
No. 135 is composite. Its prime factorization is 3 × 3 × 3 × 5.
What are the factors of 135?
The factors (divisors) of 135 are 1, 3, 5, 9, 15, 27, 45, 135.
What is 135 in binary?
135 in binary is 10000111. In hexadecimal it's 87.
What is 135 as a Roman numeral?
135 in Roman numerals is CXXXV.
What's the digit sum of 135?
Adding the digits of 135: 1 + 3 + 5 = 9.