1317145568 has 24 divisors (see below), whose sum is σ = 2594218032. Its totient is φ = 658296576.

The previous prime is 1317145523. The next prime is 1317145579. The reversal of 1317145568 is 8655417131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84221 + ... + 98627.

It is an arithmetic number, because the mean of its divisors is an integer number (108092418).

Almost surely, 2^1317145568 is an apocalyptic number.

It is an amenable number.

1317145568 is a deficient number, since it is larger than the sum of its proper divisors (1277072464).

1317145568 is a wasteful number, since it uses less digits than its factorization.

1317145568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17274 (or 17266 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 1317145568 is about 36292.5001618792. The cubic root of 1317145568 is about 1096.1700324048.

The spelling of 1317145568 in words is "one billion, three hundred seventeen million, one hundred forty-five thousand, five hundred sixty-eight".