124611920 has 20 divisors (see below), whose sum is σ = 289722900. Its totient is φ = 49844736.

The previous prime is 124611911. The next prime is 124611931. The reversal of 124611920 is 29116421.

It can be written as a sum of positive squares in 2 ways, for example, as 67699984 + 56911936 = 8228^2 + 7544^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 124611920.

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, 778745 + ... + 778904.

It is an arithmetic number, because the mean of its divisors is an integer number (14486145).

Almost surely, 2^124611920 is an apocalyptic number.

124611920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124611920 is an abundant number, since it is smaller than the sum of its proper divisors (165110980).

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

124611920 is a wasteful number, since it uses less digits than its factorization.

124611920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557662 (or 1557656 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 124611920 is about 11162.9709307155. The cubic root of 124611920 is about 499.4820235862.

The spelling of 124611920 in words is "one hundred twenty-four million, six hundred eleven thousand, nine hundred twenty".