124521604 has 12 divisors (see below), whose sum is σ = 218009484. Its totient is φ = 62233184.

The previous prime is 124521569. The next prime is 124521641. The reversal of 124521604 is 406125421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30470400 + 94051204 = 5520^2 + 9698^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5862 + ... + 16834.

It is an arithmetic number, because the mean of its divisors is an integer number (18167457).

Almost surely, 2^124521604 is an apocalyptic number.

It is an amenable number.

124521604 is a deficient number, since it is larger than the sum of its proper divisors (93487880).

124521604 is a wasteful number, since it uses less digits than its factorization.

124521604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814 (or 13812 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 124521604 is about 11158.9248586053. The cubic root of 124521604 is about 499.3613231979.

The spelling of 124521604 in words is "one hundred twenty-four million, five hundred twenty-one thousand, six hundred four".