1317394152 has 64 divisors (see below), whose sum is σ = 3665361600. Its totient is φ = 438419520.

The previous prime is 1317394123. The next prime is 1317394153. The reversal of 1317394152 is 2514937131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1317394153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138163 + ... + 147389.

It is an arithmetic number, because the mean of its divisors is an integer number (57271275).

Almost surely, 2^1317394152 is an apocalyptic number.

1317394152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1317394152 is an abundant number, since it is smaller than the sum of its proper divisors (2347967448).

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

1317394152 is a wasteful number, since it uses less digits than its factorization.

1317394152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9903 (or 9893 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1317394152 is about 36295.9247299197. The cubic root of 1317394152 is about 1096.2389878788.

The spelling of 1317394152 in words is "one billion, three hundred seventeen million, three hundred ninety-four thousand, one hundred fifty-two".