1317135984 has 40 divisors (see below), whose sum is σ = 3435649152. Its totient is φ = 434781120.

The previous prime is 1317135971. The next prime is 1317135991. The reversal of 1317135984 is 4895317131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128262 + ... + 138149.

Almost surely, 2^1317135984 is an apocalyptic number.

It is an amenable number.

1317135984 is an abundant number, since it is smaller than the sum of its proper divisors (2118513168).

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

1317135984 is a wasteful number, since it uses less digits than its factorization.

1317135984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266525 (or 266519 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 1317135984 is about 36292.3681233397. The cubic root of 1317135984 is about 1096.1673736962.

The spelling of 1317135984 in words is "one billion, three hundred seventeen million, one hundred thirty-five thousand, nine hundred eighty-four".