12613913 has 8 divisors (see below), whose sum is σ = 14175168. Its totient is φ = 11137104.

The previous prime is 12613903. The next prime is 12613933. The reversal of 12613913 is 31931621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12613913 - 2⁴ = 12613897 is a prime.

It is a super-2 number, since 2×12613913² = 318221602343138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613903) 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, 20795 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (1771896).

Almost surely, 2^12613913 is an apocalyptic number.

12613913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12613913 is a deficient number, since it is larger than the sum of its proper divisors (1561255).

12613913 is a wasteful number, since it uses less digits than its factorization.

12613913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42223.

The product of its digits is 972, while the sum is 26.

The square root of 12613913 is about 3551.6071010178. The cubic root of 12613913 is about 232.7822940227.

The spelling of 12613913 in words is "twelve million, six hundred thirteen thousand, nine hundred thirteen".