1312909796 has 48 divisors (see below), whose sum is σ = 2678417280. Its totient is φ = 556485120.

The previous prime is 1312909783. The next prime is 1312909879. The reversal of 1312909796 is 6979092131.

Together with 1365507484 it forms an amicable pair .

It is a self number, because there is not a number n which added to its sum of digits gives 1312909796.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73481 + ... + 89583.

It is an arithmetic number, because the mean of its divisors is an integer number (55800360).

Almost surely, 2^1312909796 is an apocalyptic number.

It is an amenable number.

1312909796 is an abundant number, since it is smaller than the sum of its proper divisors (1365507484).

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

1312909796 is a wasteful number, since it uses less digits than its factorization.

1312909796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16244 (or 16242 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 1312909796 is about 36234.0971461964. The cubic root of 1312909796 is about 1094.9937229195.

The spelling of 1312909796 in words is "one billion, three hundred twelve million, nine hundred nine thousand, seven hundred ninety-six".