131358791 has 2 divisors, whose sum is σ = 131358792. Its totient is φ = 131358790.

The previous prime is 131358781. The next prime is 131358817. The reversal of 131358791 is 197853131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131358791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131358701) 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, 65679395 + 65679396.

It is an arithmetic number, because the mean of its divisors is an integer number (65679396).

Almost surely, 2^131358791 is an apocalyptic number.

131358791 is a deficient number, since it is larger than the sum of its proper divisors (1).

131358791 is an equidigital number, since it uses as much as digits as its factorization.

131358791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 131358791 is about 11461.1862824055. The cubic root of 131358791 is about 508.3385520441.

The spelling of 131358791 in words is "one hundred thirty-one million, three hundred fifty-eight thousand, seven hundred ninety-one".