1315807980 has 48 divisors (see below), whose sum is σ = 3697903104. Its totient is φ = 349583040.

The previous prime is 1315807979. The next prime is 1315807993. The reversal of 1315807980 is 897085131.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24202 + ... + 56721.

It is an arithmetic number, because the mean of its divisors is an integer number (77039648).

Almost surely, 2^1315807980 is an apocalyptic number.

1315807980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315807980 is an abundant number, since it is smaller than the sum of its proper divisors (2382095124).

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

1315807980 is a wasteful number, since it uses less digits than its factorization.

1315807980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81206 (or 81204 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 1315807980 is about 36274.0675965627. The cubic root of 1315807980 is about 1095.7988457712.

The spelling of 1315807980 in words is "one billion, three hundred fifteen million, eight hundred seven thousand, nine hundred eighty".