131230899 has 12 divisors (see below), whose sum is σ = 191328696. Its totient is φ = 86668992.

The previous prime is 131230861. The next prime is 131230901. The reversal of 131230899 is 998032131.

It is not a de Polignac number, because 131230899 - 2⁸ = 131230643 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (131230199) 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, 67174 + ... + 69099.

It is an arithmetic number, because the mean of its divisors is an integer number (15944058).

Almost surely, 2^131230899 is an apocalyptic number.

131230899 is a deficient number, since it is larger than the sum of its proper divisors (60097797).

131230899 is a wasteful number, since it uses less digits than its factorization.

131230899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136386 (or 136383 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 131230899 is about 11455.6055710731. The cubic root of 131230899 is about 508.1735242758.

The spelling of 131230899 in words is "one hundred thirty-one million, two hundred thirty thousand, eight hundred ninety-nine".