124352421 has 16 divisors (see below), whose sum is σ = 173289984. Its totient is φ = 79169904.

The previous prime is 124352407. The next prime is 124352447. The reversal of 124352421 is 124253421.

It is not a de Polignac number, because 124352421 - 2⁶ = 124352357 is a prime.

It is a super-2 number, since 2×124352421² = 30927049217122482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124352391 and 124352400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124352401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61590 + ... + 63576.

It is an arithmetic number, because the mean of its divisors is an integer number (10830624).

Almost surely, 2^124352421 is an apocalyptic number.

124352421 is the 5961-st nonagonal number.

It is an amenable number.

124352421 is a deficient number, since it is larger than the sum of its proper divisors (48937563).

124352421 is a wasteful number, since it uses less digits than its factorization.

124352421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920.

The product of its digits is 1920, while the sum is 24.

The square root of 124352421 is about 11151.3416681581. The cubic root of 124352421 is about 499.1350659744.

The spelling of 124352421 in words is "one hundred twenty-four million, three hundred fifty-two thousand, four hundred twenty-one".