99131199 has 16 divisors (see below), whose sum is σ = 140152320. Its totient is φ = 62110080.

The previous prime is 99131183. The next prime is 99131203. The reversal of 99131199 is 99113199.

It is not a de Polignac number, because 99131199 - 2⁴ = 99131183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99131199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99131129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61992 + ... + 63570.

It is an arithmetic number, because the mean of its divisors is an integer number (8759520).

Almost surely, 2^99131199 is an apocalyptic number.

99131199 is a deficient number, since it is larger than the sum of its proper divisors (41021121).

99131199 is a wasteful number, since it uses less digits than its factorization.

99131199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830.

The product of its digits is 19683, while the sum is 42.

The square root of 99131199 is about 9956.4651859985. The cubic root of 99131199 is about 462.8107659648.

The spelling of 99131199 in words is "ninety-nine million, one hundred thirty-one thousand, one hundred ninety-nine".