odd, prime · 149th positive integer
The number 149
149 is an odd prime number. It is the 149th positive integer.
Quick reference
| Prime factorization | 149 (prime) |
| Divisors | 1, 149 |
| Binary | 10010101 |
| Hexadecimal | 0x95 |
| Roman numeral | CXLIX |
| Digit sum | 14 |
| Properties | odd, prime |
Frequently asked
Is 149 a prime number?
Yes. 149 is prime — its only divisors are 1 and itself.
What are the factors of 149?
The factors (divisors) of 149 are 1, 149.
What is 149 in binary?
149 in binary is 10010101. In hexadecimal it's 95.
What is 149 as a Roman numeral?
149 in Roman numerals is CXLIX.
What's the digit sum of 149?
Adding the digits of 149: 1 + 4 + 9 = 14.