13109956 has 24 divisors (see below), whose sum is σ = 23417856. Its totient is φ = 6420960.

The previous prime is 13109909. The next prime is 13109963. The reversal of 13109956 is 65990131.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 66450 + ... + 66646.

It is an arithmetic number, because the mean of its divisors is an integer number (975744).

Almost surely, 2^13109956 is an apocalyptic number.

It is an amenable number.

13109956 is a deficient number, since it is larger than the sum of its proper divisors (10307900).

13109956 is a wasteful number, since it uses less digits than its factorization.

13109956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 13109956 is about 3620.7673219913. The cubic root of 13109956 is about 235.7945401305.

The spelling of 13109956 in words is "thirteen million, one hundred nine thousand, nine hundred fifty-six".