124172904 has 64 divisors (see below), whose sum is σ = 328204800. Its totient is φ = 39040704.

The previous prime is 124172899. The next prime is 124172921. The reversal of 124172904 is 409271421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139549 + ... + 140435.

It is an arithmetic number, because the mean of its divisors is an integer number (5128200).

Almost surely, 2^124172904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124172904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164102400).

124172904 is an abundant number, since it is smaller than the sum of its proper divisors (204031896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124172904 is a wasteful number, since it uses less digits than its factorization.

124172904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 124172904 is about 11143.2896399582. The cubic root of 124172904 is about 498.8947640404.

The spelling of 124172904 in words is "one hundred twenty-four million, one hundred seventy-two thousand, nine hundred four".