13157916 has 12 divisors (see below), whose sum is σ = 30701832. Its totient is φ = 4385968.

The previous prime is 13157887. The next prime is 13157923. The reversal of 13157916 is 61975131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548235 + ... + 548258.

It is an arithmetic number, because the mean of its divisors is an integer number (2558486).

Almost surely, 2^13157916 is an apocalyptic number.

It is an amenable number.

13157916 is an abundant number, since it is smaller than the sum of its proper divisors (17543916).

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

13157916 is a wasteful number, since it uses less digits than its factorization.

13157916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096500 (or 1096498 counting only the distinct ones).

The product of its digits is 5670, while the sum is 33.

The square root of 13157916 is about 3627.3841814729. The cubic root of 13157916 is about 236.0817250236.

The spelling of 13157916 in words is "thirteen million, one hundred fifty-seven thousand, nine hundred sixteen".