Compare 1597 vs 1609
| Property | 1597 | 1609 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 15971 | 16091 | 
| Prime factorization | 1597 | 1609 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 1597 | 1, 1609 | 
| Number of properties | 9 | 6 | 
| Cousin primes (1st member) | 57th | 58th | 
| Emirps | 77th | |
| Fibonacci primes | 7th | |
| Good primes | 56th | |
| Harmonic primes | 87th | |
| Isolated primes | 152nd | |
| Lucky primes | 61st | |
| Primes | 251st | 254th | 
| Prime triplets (2nd member) | 42nd | |
| Pythagorean primes | 119th | 121st | 
| Super primes | 54th | |
| Twin primes (2nd member) | 51st | |
| Roman numberals | MDXCVII | MDCIX | 
| Base 2 | 110001111012 | 110010010012 | 
| Base 3 | 20120113 | 20121213 | 
| Base 4 | 1203314 | 1210214 | 
| Base 5 | 223425 | 224145 | 
| Base 6 | 112216 | 112416 | 
| Base 7 | 44417 | 44567 | 
| Base 8 | 30758 | 31118 | 
| Base 9 | 21649 | 21779 | 
| Base 10 | 159710 | 160910 | 
| Base 11 | 122211 | 123311 | 
| Base 12 | b1112 | b2112 | 
| Base 13 | 95b13 | 96a13 | 
| Base 14 | 82114 | 82d14 | 
| Base 15 | 71715 | 72415 | 
| Base 16 | 63d16 | 64916 |