13157688 has 32 divisors (see below), whose sum is σ = 33094800. Its totient is φ = 4359168.

The previous prime is 13157663. The next prime is 13157689. The reversal of 13157688 is 88675131.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568 + ... + 5736.

Almost surely, 2^13157688 is an apocalyptic number.

It is an amenable number.

13157688 is an abundant number, since it is smaller than the sum of its proper divisors (19937112).

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

13157688 is a wasteful number, since it uses less digits than its factorization.

13157688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351 (or 3347 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 13157688 is about 3627.3527537310. The cubic root of 13157688 is about 236.0803614098.

The spelling of 13157688 in words is "thirteen million, one hundred fifty-seven thousand, six hundred eighty-eight".