13103256 has 32 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 4311840.

The previous prime is 13103239. The next prime is 13103269. The reversal of 13103256 is 65230131.

13103256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (1036800).

Almost surely, 2^13103256 is an apocalyptic number.

It is an amenable number.

13103256 is an abundant number, since it is smaller than the sum of its proper divisors (20074344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13103256 is a wasteful number, since it uses less digits than its factorization.

13103256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999 (or 6995 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13103256 is about 3619.8419855016. The cubic root of 13103256 is about 235.7543647446.

Adding to 13103256 its reverse (65230131), we get a palindrome (78333387).

The spelling of 13103256 in words is "thirteen million, one hundred three thousand, two hundred fifty-six".