13123912 has 16 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 6350160.

The previous prime is 13123909. The next prime is 13123919. The reversal of 13123912 is 21932131.

It is not an unprimeable number, because it can be changed into a prime (13123919) 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 3 ways as a sum of consecutive naturals, for example, 26212 + ... + 26707.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^13123912 is an apocalyptic number.

It is an amenable number.

13123912 is a deficient number, since it is larger than the sum of its proper divisors (12277688).

13123912 is a wasteful number, since it uses less digits than its factorization.

13123912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52956 (or 52952 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 13123912 is about 3622.6940251697. The cubic root of 13123912 is about 235.8781809296.

The spelling of 13123912 in words is "thirteen million, one hundred twenty-three thousand, nine hundred twelve".