124999904 has 12 divisors (see below), whose sum is σ = 246093624. Its totient is φ = 62499936.

The previous prime is 124999891. The next prime is 124999907. The reversal of 124999904 is 409999421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124999907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953092 + ... + 1953155.

It is an arithmetic number, because the mean of its divisors is an integer number (20507802).

Almost surely, 2^124999904 is an apocalyptic number.

It is an amenable number.

124999904 is a deficient number, since it is larger than the sum of its proper divisors (121093720).

124999904 is an equidigital number, since it uses as much as digits as its factorization.

124999904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906257 (or 3906249 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 124999904 is about 11180.3355942476. The cubic root of 124999904 is about 499.9998720000. Note that the first 3 decimals are identical.

The spelling of 124999904 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, nine hundred four".