12912718 has 16 divisors (see below), whose sum is σ = 23839200. Its totient is φ = 5108256.

The previous prime is 12912703. The next prime is 12912719. The reversal of 12912718 is 81721921.

It is a super-2 number, since 2×12912718² = 333476572295048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12912718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12912719) 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, 35293 + ... + 35656.

It is an arithmetic number, because the mean of its divisors is an integer number (1489950).

Almost surely, 2^12912718 is an apocalyptic number.

12912718 is a deficient number, since it is larger than the sum of its proper divisors (10926482).

12912718 is a wasteful number, since it uses less digits than its factorization.

12912718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70971.

The product of its digits is 2016, while the sum is 31.

The square root of 12912718 is about 3593.4270550548. The cubic root of 12912718 is about 234.6060579565.

The spelling of 12912718 in words is "twelve million, nine hundred twelve thousand, seven hundred eighteen".