12617513 has 4 divisors (see below), whose sum is σ = 12733380. Its totient is φ = 12501648.

The previous prime is 12617509. The next prime is 12617537. The reversal of 12617513 is 31571621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7546009 + 5071504 = 2747^2 + 2252^2 .

It is a cyclic number.

It is not a de Polignac number, because 12617513 - 2² = 12617509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12617503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57770 + ... + 57987.

It is an arithmetic number, because the mean of its divisors is an integer number (3183345).

Almost surely, 2^12617513 is an apocalyptic number.

It is an amenable number.

12617513 is a deficient number, since it is larger than the sum of its proper divisors (115867).

12617513 is a wasteful number, since it uses less digits than its factorization.

12617513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115866.

The product of its digits is 1260, while the sum is 26.

The square root of 12617513 is about 3552.1138776790. The cubic root of 12617513 is about 232.8044372056.

The spelling of 12617513 in words is "twelve million, six hundred seventeen thousand, five hundred thirteen".