99124 has 6 divisors (see below), whose sum is σ = 173474. Its totient is φ = 49560.

The previous prime is 99119. The next prime is 99131. The reversal of 99124 is 42199.

It can be written as a sum of positive squares in only one way, i.e., 79524 + 19600 = 282^2 + 140^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12387 + ... + 12394.

2⁹⁹¹²⁴ is an apocalyptic number.

It is an amenable number.

99124 is a deficient number, since it is larger than the sum of its proper divisors (74350).

99124 is a wasteful number, since it uses less digits than its factorization.

99124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24785 (or 24783 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 99124 is about 314.8396417226. The cubic root of 99124 is about 46.2799562444.

Subtracting from 99124 its sum of digits (25), we obtain a palindrome (99099).

The spelling of 99124 in words is "ninety-nine thousand, one hundred twenty-four".