1317610856 has 16 divisors (see below), whose sum is σ = 2550215040. Its totient is φ = 637553520.

The previous prime is 1317610813. The next prime is 1317610883. The reversal of 1317610856 is 6580167131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656226 + ... + 2656721.

It is an arithmetic number, because the mean of its divisors is an integer number (159388440).

Almost surely, 2^1317610856 is an apocalyptic number.

It is an amenable number.

1317610856 is a deficient number, since it is larger than the sum of its proper divisors (1232604184).

1317610856 is a wasteful number, since it uses less digits than its factorization.

1317610856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312984 (or 5312980 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1317610856 is about 36298.9098458893. The cubic root of 1317610856 is about 1096.2990929857.

Adding to 1317610856 its reverse (6580167131), we get a palindrome (7897777987).

The spelling of 1317610856 in words is "one billion, three hundred seventeen million, six hundred ten thousand, eight hundred fifty-six".