13113912 has 32 divisors (see below), whose sum is σ = 37468800. Its totient is φ = 3746784.

The previous prime is 13113811. The next prime is 13113929. The reversal of 13113912 is 21931131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38862 + ... + 39197.

It is an arithmetic number, because the mean of its divisors is an integer number (1170900).

Almost surely, 2^13113912 is an apocalyptic number.

13113912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13113912 is an abundant number, since it is smaller than the sum of its proper divisors (24354888).

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

13113912 is a wasteful number, since it uses less digits than its factorization.

13113912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78075 (or 78071 counting only the distinct ones).

The product of its digits is 162, while the sum is 21.

The square root of 13113912 is about 3621.3135738293. The cubic root of 13113912 is about 235.8182551705.

The spelling of 13113912 in words is "thirteen million, one hundred thirteen thousand, nine hundred twelve".