1317115760 has 20 divisors (see below), whose sum is σ = 3062294328. Its totient is φ = 526846272.

The previous prime is 1317115759. The next prime is 1317115819. The reversal of 1317115760 is 675117131.

It is a tau number, because it is divible by the number of its divisors (20).

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, 8231894 + ... + 8232053.

Almost surely, 2^1317115760 is an apocalyptic number.

1317115760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317115760 is an abundant number, since it is smaller than the sum of its proper divisors (1745178568).

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

1317115760 is a wasteful number, since it uses less digits than its factorization.

1317115760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16463960 (or 16463954 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 1317115760 is about 36292.0894961974. The cubic root of 1317115760 is about 1096.1617632903.

The spelling of 1317115760 in words is "one billion, three hundred seventeen million, one hundred fifteen thousand, seven hundred sixty".