1312913372 has 12 divisors (see below), whose sum is σ = 2309629056. Its totient is φ = 653019360.

The previous prime is 1312913353. The next prime is 1312913377. The reversal of 1312913372 is 2733192131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312913377) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 858473 + ... + 860000.

It is an arithmetic number, because the mean of its divisors is an integer number (192469088).

Almost surely, 2^1312913372 is an apocalyptic number.

It is an amenable number.

1312913372 is a deficient number, since it is larger than the sum of its proper divisors (996715684).

1312913372 is a wasteful number, since it uses less digits than its factorization.

1312913372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718668 (or 1718666 counting only the distinct ones).

The product of its digits is 6804, while the sum is 32.

The square root of 1312913372 is about 36234.1464919487. The cubic root of 1312913372 is about 1094.9947170710.

The spelling of 1312913372 in words is "one billion, three hundred twelve million, nine hundred thirteen thousand, three hundred seventy-two".