1313636373 has 24 divisors (see below), whose sum is σ = 2248861888. Its totient is φ = 750648384.

The previous prime is 1313636341. The next prime is 1313636381. The reversal of 1313636373 is 3736363131.

1313636373 is a `hidden beast` number, since 1 + 3 + 13 + 6 + 3 + 637 + 3 = 666.

It is not a de Polignac number, because 1313636373 - 2⁵ = 1313636341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313636333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384436 + ... + 387837.

Almost surely, 2^1313636373 is an apocalyptic number.

It is an amenable number.

1313636373 is a deficient number, since it is larger than the sum of its proper divisors (935225515).

1313636373 is an frugal number, since it uses more digits than its factorization.

1313636373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772295 (or 772283 counting only the distinct ones).

The product of its digits is 61236, while the sum is 36.

The square root of 1313636373 is about 36244.1219096283. The cubic root of 1313636373 is about 1095.1956790473.

The spelling of 1313636373 in words is "one billion, three hundred thirteen million, six hundred thirty-six thousand, three hundred seventy-three".