12317539 has 8 divisors (see below), whose sum is σ = 13294512. Its totient is φ = 11344800.

The previous prime is 12317531. The next prime is 12317563. The reversal of 12317539 is 93571321.

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 12317539 - 2³ = 12317531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12317539.

It is not an unprimeable number, because it can be changed into a prime (12317531) 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, 7764 + ... + 9214.

It is an arithmetic number, because the mean of its divisors is an integer number (1661814).

Almost surely, 2^12317539 is an apocalyptic number.

12317539 is a deficient number, since it is larger than the sum of its proper divisors (976973).

12317539 is a wasteful number, since it uses less digits than its factorization.

12317539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117.

The product of its digits is 5670, while the sum is 31.

The square root of 12317539 is about 3509.6351662245. The cubic root of 12317539 is about 230.9446904430.

The spelling of 12317539 in words is "twelve million, three hundred seventeen thousand, five hundred thirty-nine".