| Decimal | 139 |
| Binary | 10001011 |
| Hexadecimal | 0x8b |
| Roman | CXXXIX |
| Square root of | 19321 |
| The number 139 | is prime! |
| English | one hundred thirty-nine |
| Wikipedia article about 139 | Article about 139 |
| ASCII code for | Single left-pointing angle quotation |
| random from 0 to 6 | Show |
| random from 0 to 10 | Show |
| random from 0 to 100 | Show |
| random from 0 to 1000 | Show |