13688156 has 12 divisors (see below), whose sum is σ = 24347400. Its totient is φ = 6731760.

The previous prime is 13688141. The next prime is 13688159. The reversal of 13688156 is 65188631.

It is a happy number.

It is a super-2 number, since 2×13688156² = 374731229360672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27806 + ... + 28293.

It is an arithmetic number, because the mean of its divisors is an integer number (2028950).

Almost surely, 2^13688156 is an apocalyptic number.

It is an amenable number.

13688156 is a deficient number, since it is larger than the sum of its proper divisors (10659244).

13688156 is a wasteful number, since it uses less digits than its factorization.

13688156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56164 (or 56162 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 13688156 is about 3699.7508024190. The cubic root of 13688156 is about 239.2112765607.

The spelling of 13688156 in words is "thirteen million, six hundred eighty-eight thousand, one hundred fifty-six".