124019900 has 18 divisors (see below), whose sum is σ = 269123400. Its totient is φ = 49607920.

The previous prime is 124019899. The next prime is 124019941. The reversal of 124019900 is 9910421.

It is a self number, because there is not a number n which added to its sum of digits gives 124019900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 620000 + ... + 620199.

It is an arithmetic number, because the mean of its divisors is an integer number (14951300).

Almost surely, 2^124019900 is an apocalyptic number.

124019900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124019900 is an abundant number, since it is smaller than the sum of its proper divisors (145103500).

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

124019900 is a wasteful number, since it uses less digits than its factorization.

124019900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240213 (or 1240206 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 124019900 is about 11136.4222261910. The cubic root of 124019900 is about 498.6897695916.

The spelling of 124019900 in words is "one hundred twenty-four million, nineteen thousand, nine hundred".