124407621 has 48 divisors (see below), whose sum is σ = 204736896. Its totient is φ = 72217728.

The previous prime is 124407617. The next prime is 124407697. The reversal of 124407621 is 126704421.

It is not a de Polignac number, because 124407621 - 2² = 124407617 is a prime.

It is a super-3 number, since 3×124407621³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124400621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223075 + ... + 223631.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2^124407621 is an apocalyptic number.

It is an amenable number.

124407621 is a deficient number, since it is larger than the sum of its proper divisors (80329275).

124407621 is a wasteful number, since it uses less digits than its factorization.

124407621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 124407621 is about 11153.8164320559. The cubic root of 124407621 is about 499.2089103478.

The spelling of 124407621 in words is "one hundred twenty-four million, four hundred seven thousand, six hundred twenty-one".