1317930912 has 144 divisors (see below), whose sum is σ = 4056212160. Its totient is φ = 420152832.

The previous prime is 1317930883. The next prime is 1317930919. The reversal of 1317930912 is 2190397131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

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 (1317930919) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 175164 + ... + 182532.

It is an arithmetic number, because the mean of its divisors is an integer number (28168140).

Almost surely, 2^1317930912 is an apocalyptic number.

1317930912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317930912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2028106080).

1317930912 is an abundant number, since it is smaller than the sum of its proper divisors (2738281248).

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

1317930912 is an equidigital number, since it uses as much as digits as its factorization.

1317930912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7417 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 1317930912 is about 36303.3181954487. The cubic root of 1317930912 is about 1096.3878517910.

The spelling of 1317930912 in words is "one billion, three hundred seventeen million, nine hundred thirty thousand, nine hundred twelve".