13191256 has 16 divisors (see below), whose sum is σ = 26636400. Its totient is φ = 6088224.

The previous prime is 13191251. The next prime is 13191271. The reversal of 13191256 is 65219131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63316 + ... + 63523.

It is an arithmetic number, because the mean of its divisors is an integer number (1664775).

Almost surely, 2^13191256 is an apocalyptic number.

It is an amenable number.

13191256 is an abundant number, since it is smaller than the sum of its proper divisors (13445144).

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

13191256 is a wasteful number, since it uses less digits than its factorization.

13191256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126858 (or 126854 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 13191256 is about 3631.9768721731. The cubic root of 13191256 is about 236.2809542972.

It can be divided in two parts, 1319125 and 6, that added together give a palindrome (1319131).

The spelling of 13191256 in words is "thirteen million, one hundred ninety-one thousand, two hundred fifty-six".