131837979 has 48 divisors (see below), whose sum is σ = 231866880. Its totient is φ = 65862720.

The previous prime is 131837971. The next prime is 131838011. The reversal of 131837979 is 979738131.

It is not a de Polignac number, because 131837979 - 2³ = 131837971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131837971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34494 + ... + 38124.

It is an arithmetic number, because the mean of its divisors is an integer number (4830560).

Almost surely, 2^131837979 is an apocalyptic number.

131837979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131837979 is a deficient number, since it is larger than the sum of its proper divisors (100028901).

131837979 is a wasteful number, since it uses less digits than its factorization.

131837979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680 (or 3673 counting only the distinct ones).

The product of its digits is 285768, while the sum is 48.

The square root of 131837979 is about 11482.0720690997. The cubic root of 131837979 is about 508.9559301717.

The spelling of 131837979 in words is "one hundred thirty-one million, eight hundred thirty-seven thousand, nine hundred seventy-nine".