123222439 has 2 divisors, whose sum is σ = 123222440. Its totient is φ = 123222438.

The previous prime is 123222433. The next prime is 123222457. The reversal of 123222439 is 934222321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123222439 - 2⁹ = 123221927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123222433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611219 + 61611220.

It is an arithmetic number, because the mean of its divisors is an integer number (61611220).

Almost surely, 2^123222439 is an apocalyptic number.

123222439 is a deficient number, since it is larger than the sum of its proper divisors (1).

123222439 is an equidigital number, since it uses as much as digits as its factorization.

123222439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 123222439 is about 11100.5603011740. The cubic root of 123222439 is about 497.6185944891.

The spelling of 123222439 in words is "one hundred twenty-three million, two hundred twenty-two thousand, four hundred thirty-nine".