12913718 has 16 divisors (see below), whose sum is σ = 20376576. Its totient is φ = 6126120.

The previous prime is 12913709. The next prime is 12913739. The reversal of 12913718 is 81731921.

It is a super-2 number, since 2×12913718² = 333528225167048, which contains 22 as substring.

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, 4955 + ... + 7097.

It is an arithmetic number, because the mean of its divisors is an integer number (1273536).

Almost surely, 2^12913718 is an apocalyptic number.

12913718 is a deficient number, since it is larger than the sum of its proper divisors (7462858).

12913718 is a wasteful number, since it uses less digits than its factorization.

12913718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299.

The product of its digits is 3024, while the sum is 32.

The square root of 12913718 is about 3593.5661952996. The cubic root of 12913718 is about 234.6121140015.

It can be divided in two parts, 12913 and 718, that added together give a palindrome (13631).

The spelling of 12913718 in words is "twelve million, nine hundred thirteen thousand, seven hundred eighteen".