12917513 has 8 divisors (see below), whose sum is σ = 15404928. Its totient is φ = 10590624.

The previous prime is 12917507. The next prime is 12917563. The reversal of 12917513 is 31571921.

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 12917513 - 2⁶ = 12917449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12917503) 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, 39956 + ... + 40277.

It is an arithmetic number, because the mean of its divisors is an integer number (1925616).

Almost surely, 2^12917513 is an apocalyptic number.

It is an amenable number.

12917513 is a deficient number, since it is larger than the sum of its proper divisors (2487415).

12917513 is an equidigital number, since it uses as much as digits as its factorization.

12917513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80263.

The product of its digits is 1890, while the sum is 29.

The square root of 12917513 is about 3594.0941835183. The cubic root of 12917513 is about 234.6350938479.

The spelling of 12917513 in words is "twelve million, nine hundred seventeen thousand, five hundred thirteen".