124503990 has 64 divisors (see below), whose sum is σ = 323870400. Its totient is φ = 30630912.

The previous prime is 124503961. The next prime is 124503997. The reversal of 124503990 is 99305421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124503997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64966 + ... + 66854.

It is an arithmetic number, because the mean of its divisors is an integer number (5060475).

Almost surely, 2^124503990 is an apocalyptic number.

124503990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 124503990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161935200).

124503990 is an abundant number, since it is smaller than the sum of its proper divisors (199366410).

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

124503990 is a wasteful number, since it uses less digits than its factorization.

124503990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 124503990 is about 11158.1355969535. The cubic root of 124503990 is about 499.3377766410.

The spelling of 124503990 in words is "one hundred twenty-four million, five hundred three thousand, nine hundred ninety".