odd, prime · 137th positive integer
The number 137
137 is an odd prime number. It is the 137th positive integer.
Quick reference
| Prime factorization | 137 (prime) |
| Divisors | 1, 137 |
| Binary | 10001001 |
| Hexadecimal | 0x89 |
| Roman numeral | CXXXVII |
| Digit sum | 11 |
| Properties | odd, prime |
Reading 137 in NumGrid context
137 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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for 137’s peers within positive integers within the NumGrid target pool. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Frequently asked
Is 137 a prime number?
Yes. 137 is prime — its only divisors are 1 and itself.
What are the factors of 137?
The factors (divisors) of 137 are 1, 137.
What is 137 in binary?
137 in binary is 10001001. In hexadecimal it's 89.
What is 137 as a Roman numeral?
137 in Roman numerals is CXXXVII.
What's the digit sum of 137?
Adding the digits of 137: 1 + 3 + 7 = 11.