13402156 has 12 divisors (see below), whose sum is σ = 23610160. Its totient is φ = 6656400.

The previous prime is 13402141. The next prime is 13402157. The reversal of 13402156 is 65120431.

It is not an unprimeable number, because it can be changed into a prime (13402157) 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, 10491 + ... + 11698.

Almost surely, 2^13402156 is an apocalyptic number.

It is an amenable number.

13402156 is a deficient number, since it is larger than the sum of its proper divisors (10208004).

13402156 is a wasteful number, since it uses less digits than its factorization.

13402156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22344 (or 22342 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13402156 is about 3660.8955188587. The cubic root of 13402156 is about 237.5335117993.

Adding to 13402156 its reverse (65120431), we get a palindrome (78522587).

The spelling of 13402156 in words is "thirteen million, four hundred two thousand, one hundred fifty-six".