99931252 has 12 divisors (see below), whose sum is σ = 175322980. Its totient is φ = 49838976.

The previous prime is 99931231. The next prime is 99931261. The reversal of 99931252 is 25213999.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 31967716 = 8244^2 + 5654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29877 + ... + 33052.

Almost surely, 2^99931252 is an apocalyptic number.

It is an amenable number.

99931252 is a deficient number, since it is larger than the sum of its proper divisors (75391728).

99931252 is a wasteful number, since it uses less digits than its factorization.

99931252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63330 (or 63328 counting only the distinct ones).

The product of its digits is 43740, while the sum is 40.

The square root of 99931252 is about 9996.5620090109. The cubic root of 99931252 is about 464.0524923273.

The spelling of 99931252 in words is "ninety-nine million, nine hundred thirty-one thousand, two hundred fifty-two".