13156880 has 40 divisors (see below), whose sum is σ = 33372864. Its totient is φ = 4784000.

The previous prime is 13156877. The next prime is 13156889. The reversal of 13156880 is 8865131.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (13156889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6596 + ... + 8355.

Almost surely, 2^13156880 is an apocalyptic number.

13156880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13156880 is an abundant number, since it is smaller than the sum of its proper divisors (20215984).

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

13156880 is a wasteful number, since it uses less digits than its factorization.

13156880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14975 (or 14969 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 13156880 is about 3627.2413760322. The cubic root of 13156880 is about 236.0755288274.

The spelling of 13156880 in words is "thirteen million, one hundred fifty-six thousand, eight hundred eighty".