12317605 has 32 divisors (see below), whose sum is σ = 17107200. Its totient is φ = 8451072.

The previous prime is 12317597. The next prime is 12317623. The reversal of 12317605 is 50671321.

It is a cyclic number.

It is not a de Polignac number, because 12317605 - 2³ = 12317597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12317605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46704 + ... + 46966.

It is an arithmetic number, because the mean of its divisors is an integer number (534600).

Almost surely, 2^12317605 is an apocalyptic number.

It is an amenable number.

12317605 is a deficient number, since it is larger than the sum of its proper divisors (4789595).

12317605 is a wasteful number, since it uses less digits than its factorization.

12317605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 12317605 is about 3509.6445688987. The cubic root of 12317605 is about 230.9451029259.

Adding to 12317605 its reverse (50671321), we get a palindrome (62988926).

It can be divided in two parts, 1231 and 7605, that added together give a square (8836 = 94²).

The spelling of 12317605 in words is "twelve million, three hundred seventeen thousand, six hundred five".