124421239 has 2 divisors, whose sum is σ = 124421240. Its totient is φ = 124421238.

The previous prime is 124421207. The next prime is 124421243. The reversal of 124421239 is 932124421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124421239 - 2⁵ = 124421207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124421279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62210619 + 62210620.

It is an arithmetic number, because the mean of its divisors is an integer number (62210620).

Almost surely, 2^124421239 is an apocalyptic number.

124421239 is a deficient number, since it is larger than the sum of its proper divisors (1).

124421239 is an equidigital number, since it uses as much as digits as its factorization.

124421239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 124421239 is about 11154.4268790467. The cubic root of 124421239 is about 499.2271246095.

The spelling of 124421239 in words is "one hundred twenty-four million, four hundred twenty-one thousand, two hundred thirty-nine".