12913188 has 48 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 4178944.

The previous prime is 12913181. The next prime is 12913211. The reversal of 12913188 is 88131921.

It is not an unprimeable number, because it can be changed into a prime (12913181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114220 + ... + 114332.

It is an arithmetic number, because the mean of its divisors is an integer number (646380).

Almost surely, 2^12913188 is an apocalyptic number.

It is an amenable number.

12913188 is an abundant number, since it is smaller than the sum of its proper divisors (18113052).

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

12913188 is a wasteful number, since it uses less digits than its factorization.

12913188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 12913188 is about 3593.4924516409. The cubic root of 12913188 is about 234.6089043366.

The spelling of 12913188 in words is "twelve million, nine hundred thirteen thousand, one hundred eighty-eight".