1313679631 has 8 divisors (see below), whose sum is σ = 1433379024. Its totient is φ = 1194025920.

The previous prime is 1313679611. The next prime is 1313679643. The reversal of 1313679631 is 1369763131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313679631 - 2⁷ = 1313679503 is a prime.

It is a super-2 number, since 2×1313679631² = 3451508345808592322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313679611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81931 + ... + 96643.

It is an arithmetic number, because the mean of its divisors is an integer number (179172378).

Almost surely, 2^1313679631 is an apocalyptic number.

1313679631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313679631 is a deficient number, since it is larger than the sum of its proper divisors (119699393).

1313679631 is a wasteful number, since it uses less digits than its factorization.

1313679631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22841.

The product of its digits is 61236, while the sum is 40.

The square root of 1313679631 is about 36244.7186635515. The cubic root of 1313679631 is about 1095.2077005005.

The spelling of 1313679631 in words is "one billion, three hundred thirteen million, six hundred seventy-nine thousand, six hundred thirty-one".