1313925812 has 12 divisors (see below), whose sum is σ = 2309682816. Its totient is φ = 654016440.

The previous prime is 1313925803. The next prime is 1313925827. The reversal of 1313925812 is 2185293131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 735614 + ... + 737397.

It is an arithmetic number, because the mean of its divisors is an integer number (192473568).

Almost surely, 2^1313925812 is an apocalyptic number.

It is an amenable number.

1313925812 is a deficient number, since it is larger than the sum of its proper divisors (995757004).

1313925812 is a wasteful number, since it uses less digits than its factorization.

1313925812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473238 (or 1473236 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 1313925812 is about 36248.1145992450. The cubic root of 1313925812 is about 1095.2761094896.

The spelling of 1313925812 in words is "one billion, three hundred thirteen million, nine hundred twenty-five thousand, eight hundred twelve".