131793631 has 2 divisors, whose sum is σ = 131793632. Its totient is φ = 131793630.

The previous prime is 131793601. The next prime is 131793647. The reversal of 131793631 is 136397131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131793631 - 2⁹ = 131793119 is a prime.

It is a super-2 number, since 2×131793631² = 34739122344328322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131793601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65896815 + 65896816.

It is an arithmetic number, because the mean of its divisors is an integer number (65896816).

Almost surely, 2^131793631 is an apocalyptic number.

131793631 is a deficient number, since it is larger than the sum of its proper divisors (1).

131793631 is an equidigital number, since it uses as much as digits as its factorization.

131793631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 34.

The square root of 131793631 is about 11480.1407221340. The cubic root of 131793631 is about 508.8988558013.

The spelling of 131793631 in words is "one hundred thirty-one million, seven hundred ninety-three thousand, six hundred thirty-one".