131679693 has 12 divisors (see below), whose sum is σ = 191162400. Its totient is φ = 87344136.

The previous prime is 131679689. The next prime is 131679697. The reversal of 131679693 is 396976131.

It is an interprime number because it is at equal distance from previous prime (131679689) and next prime (131679697).

It is not a de Polignac number, because 131679693 - 2² = 131679689 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131679697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34971 + ... + 38552.

It is an arithmetic number, because the mean of its divisors is an integer number (15930200).

Almost surely, 2^131679693 is an apocalyptic number.

It is an amenable number.

131679693 is a deficient number, since it is larger than the sum of its proper divisors (59482707).

131679693 is a wasteful number, since it uses less digits than its factorization.

131679693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73728 (or 73725 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 131679693 is about 11475.1772535329. The cubic root of 131679693 is about 508.7521627365.

The spelling of 131679693 in words is "one hundred thirty-one million, six hundred seventy-nine thousand, six hundred ninety-three".