12318579 has 48 divisors (see below), whose sum is σ = 22276800. Its totient is φ = 6424704.

The previous prime is 12318577. The next prime is 12318583. The reversal of 12318579 is 97581321.

It is not a de Polignac number, because 12318579 - 2¹ = 12318577 is a prime.

Its product of digits (15120) is a multiple of the sum of its prime divisors (112).

It is not an unprimeable number, because it can be changed into a prime (12318577) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138367 + ... + 138455.

It is an arithmetic number, because the mean of its divisors is an integer number (464100).

Almost surely, 2^12318579 is an apocalyptic number.

12318579 is a deficient number, since it is larger than the sum of its proper divisors (9958221).

12318579 is an equidigital number, since it uses as much as digits as its factorization.

12318579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 112 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12318579 is about 3509.7833266457. The cubic root of 12318579 is about 230.9511900021.

The spelling of 12318579 in words is "twelve million, three hundred eighteen thousand, five hundred seventy-nine".