122597839 has 24 divisors (see below), whose sum is σ = 156659712. Its totient is φ = 93843360.

The previous prime is 122597837. The next prime is 122597857. The reversal of 122597839 is 938795221.

It is not a de Polignac number, because 122597839 - 2¹ = 122597837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122597837) 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, 35002 + ... + 38344.

It is an arithmetic number, because the mean of its divisors is an integer number (6527488).

Almost surely, 2^122597839 is an apocalyptic number.

122597839 is a deficient number, since it is larger than the sum of its proper divisors (34061873).

122597839 is a wasteful number, since it uses less digits than its factorization.

122597839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407 (or 3394 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 122597839 is about 11072.3908438964. The cubic root of 122597839 is about 496.7763798786.

The spelling of 122597839 in words is "one hundred twenty-two million, five hundred ninety-seven thousand, eight hundred thirty-nine".