1317318564 has 96 divisors (see below), whose sum is σ = 3303336960. Its totient is φ = 407376000.

The previous prime is 1317318539. The next prime is 1317318571. The reversal of 1317318564 is 4658137131.

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, 2857294 + ... + 2857754.

It is an arithmetic number, because the mean of its divisors is an integer number (34409760).

Almost surely, 2^1317318564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317318564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651668480).

1317318564 is an abundant number, since it is smaller than the sum of its proper divisors (1986018396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317318564 is a wasteful number, since it uses less digits than its factorization.

1317318564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 719 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 1317318564 is about 36294.8834410582. The cubic root of 1317318564 is about 1096.2180212108.

The spelling of 1317318564 in words is "one billion, three hundred seventeen million, three hundred eighteen thousand, five hundred sixty-four".