99232131 has 4 divisors (see below), whose sum is σ = 132309512. Its totient is φ = 66154752.

The previous prime is 99232099. The next prime is 99232139. The reversal of 99232131 is 13123299.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99232131 - 2⁵ = 99232099 is a prime.

It is a super-2 number, since 2×99232131² = 19694031645602322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99232139) 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 in 3 ways as a sum of consecutive naturals, for example, 16538686 + ... + 16538691.

It is an arithmetic number, because the mean of its divisors is an integer number (33077378).

Almost surely, 2^99232131 is an apocalyptic number.

99232131 is a deficient number, since it is larger than the sum of its proper divisors (33077381).

99232131 is a wasteful number, since it uses less digits than its factorization.

99232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33077380.

The product of its digits is 2916, while the sum is 30.

The square root of 99232131 is about 9961.5325628138. The cubic root of 99232131 is about 462.9677853896.

The spelling of 99232131 in words is "ninety-nine million, two hundred thirty-two thousand, one hundred thirty-one".