122935839 has 24 divisors (see below), whose sum is σ = 181653120. Its totient is φ = 73880352.

The previous prime is 122935819. The next prime is 122935847. The reversal of 122935839 is 938539221.

It is not a de Polignac number, because 122935839 - 2⁷ = 122935711 is a prime.

It is a super-2 number, since 2×122935839² = 30226441021267842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122935839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122935819) 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 23 ways as a sum of consecutive naturals, for example, 18982 + ... + 24620.

It is an arithmetic number, because the mean of its divisors is an integer number (7568880).

Almost surely, 2^122935839 is an apocalyptic number.

122935839 is a deficient number, since it is larger than the sum of its proper divisors (58717281).

122935839 is a wasteful number, since it uses less digits than its factorization.

122935839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711 (or 5698 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 122935839 is about 11087.6435278196. The cubic root of 122935839 is about 497.2324954323.

The spelling of 122935839 in words is "one hundred twenty-two million, nine hundred thirty-five thousand, eight hundred thirty-nine".