122624239 has 2 divisors, whose sum is σ = 122624240. Its totient is φ = 122624238.

The previous prime is 122624221. The next prime is 122624263. The reversal of 122624239 is 932426221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122624239 - 2⁵ = 122624207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122624239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122624639) 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 as a sum of consecutive naturals, namely, 61312119 + 61312120.

It is an arithmetic number, because the mean of its divisors is an integer number (61312120).

Almost surely, 2^122624239 is an apocalyptic number.

122624239 is a deficient number, since it is larger than the sum of its proper divisors (1).

122624239 is an equidigital number, since it uses as much as digits as its factorization.

122624239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 122624239 is about 11073.5829341727. The cubic root of 122624239 is about 496.8120356326.

The spelling of 122624239 in words is "one hundred twenty-two million, six hundred twenty-four thousand, two hundred thirty-nine".