131599747 has 2 divisors, whose sum is σ = 131599748. Its totient is φ = 131599746.

The previous prime is 131599729. The next prime is 131599759. The reversal of 131599747 is 747995131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131599747 - 2¹⁵ = 131566979 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131599697 and 131599706.

It is not a weakly prime, because it can be changed into another prime (131599717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65799873 + 65799874.

It is an arithmetic number, because the mean of its divisors is an integer number (65799874).

Almost surely, 2^131599747 is an apocalyptic number.

131599747 is a deficient number, since it is larger than the sum of its proper divisors (1).

131599747 is an equidigital number, since it uses as much as digits as its factorization.

131599747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 131599747 is about 11471.6932926225. The cubic root of 131599747 is about 508.6491832176.

The spelling of 131599747 in words is "one hundred thirty-one million, five hundred ninety-nine thousand, seven hundred forty-seven".