1312632516 has 24 divisors (see below), whose sum is σ = 3298410304. Its totient is φ = 403886880.

The previous prime is 1312632487. The next prime is 1312632523. The reversal of 1312632516 is 6152362131.

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, 4207000 + ... + 4207311.

Almost surely, 2^1312632516 is an apocalyptic number.

It is an amenable number.

1312632516 is an abundant number, since it is smaller than the sum of its proper divisors (1985777788).

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

1312632516 is a wasteful number, since it uses less digits than its factorization.

1312632516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8414331 (or 8414329 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 1312632516 is about 36230.2707138658. The cubic root of 1312632516 is about 1094.9166317547.

Adding to 1312632516 its reverse (6152362131), we get a palindrome (7464994647).

The spelling of 1312632516 in words is "one billion, three hundred twelve million, six hundred thirty-two thousand, five hundred sixteen".