Compare 131 vs 149
| Property | 131 | 149 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1311 | 1491 |
| Prime factorization | 131 | 149 |
| Divisors count | 2 | 2 |
| Divisors | 1, 131 | 1, 149 |
| Number of properties | 12 | 8 |
| Additive primes | 17th | |
| Chen primes | 26th | 29th |
| Cousin primes (2nd member) | 12th | |
| Emirps | 11th | |
| Good primes | 14th | |
| Harmonic primes | 12th | |
| Isolated primes | 13th | |
| Long primes | 12th | 13th |
| Multiplicative primes | 10th | |
| Palindromic primes | 7th | |
| Primes | 32nd | 35th |
| Pythagorean primes | 16th | |
| Sexy primes (1st member) | 20th | |
| Solinas primes | 23rd | |
| Sophie germain primes | 12th | |
| Twin primes (1st member) | 12th | |
| Ulam primes | 8th | |
| Roman numberals | CXXXI | CXLIX |
| Base 2 | 100000112 | 100101012 |
| Base 3 | 112123 | 121123 |
| Base 4 | 20034 | 21114 |
| Base 5 | 10115 | 10445 |
| Base 6 | 3356 | 4056 |
| Base 7 | 2457 | 3027 |
| Base 8 | 2038 | 2258 |
| Base 9 | 1559 | 1759 |
| Base 10 | 13110 | 14910 |
| Base 11 | 10a11 | 12611 |
| Base 12 | ab12 | 10512 |
| Base 13 | a113 | b613 |
| Base 14 | 9514 | a914 |
| Base 15 | 8b15 | 9e15 |
| Base 16 | 8316 | 9516 |