1313864379 has 6 divisors (see below), whose sum is σ = 1897804116. Its totient is φ = 875909580.

The previous prime is 1313864347. The next prime is 1313864381. The reversal of 1313864379 is 9734683131.

1313864379 is a `hidden beast` number, since 131 + 3 + 86 + 437 + 9 = 666.

It is not a de Polignac number, because 1313864379 - 2⁵ = 1313864347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313864389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72992457 + ... + 72992474.

It is an arithmetic number, because the mean of its divisors is an integer number (316300686).

Almost surely, 2^1313864379 is an apocalyptic number.

1313864379 is a deficient number, since it is larger than the sum of its proper divisors (583939737).

1313864379 is a wasteful number, since it uses less digits than its factorization.

1313864379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145984937 (or 145984934 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 1313864379 is about 36247.2671935416. The cubic root of 1313864379 is about 1095.2590392346.

The spelling of 1313864379 in words is "one billion, three hundred thirteen million, eight hundred sixty-four thousand, three hundred seventy-nine".