131431679 has 8 divisors (see below), whose sum is σ = 134093232. Its totient is φ = 128776960.

The previous prime is 131431673. The next prime is 131431681. The reversal of 131431679 is 976134131.

It is a happy number.

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 131431679 - 2⁸ = 131431423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131431673) 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, 56687 + ... + 58959.

It is an arithmetic number, because the mean of its divisors is an integer number (16761654).

Almost surely, 2^131431679 is an apocalyptic number.

131431679 is a deficient number, since it is larger than the sum of its proper divisors (2661553).

131431679 is a wasteful number, since it uses less digits than its factorization.

131431679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417.

The product of its digits is 13608, while the sum is 35.

The square root of 131431679 is about 11464.3656169890. The cubic root of 131431679 is about 508.4325564858.

The spelling of 131431679 in words is "one hundred thirty-one million, four hundred thirty-one thousand, six hundred seventy-nine".