3251 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.
It is a strong prime.
It is a cyclic number.
It is a Chen prime.
It is a nialpdrome in base 16.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 3251.
It is a good prime.
23251 is an apocalyptic number.
3251 is the 26-th centered decagonal number.
3251 is an equidigital number, since it uses as much as digits as its factorization.
3251 is an odious number, because the sum of its binary digits is odd.
The square root of 3251 is about 57.0175411606. The cubic root of 3251 is about 14.8139994150.
Subtracting from 3251 its sum of digits (11), we obtain a triangular number (3240 = T80).
Adding to 3251 its reverse (1523), we get a palindrome (4774).
Subtracting from 3251 its reverse (1523), we obtain a cube (1728 = 123).
The spelling of 3251 in words is "three thousand, two hundred fifty-one".