122935939 has 4 divisors (see below), whose sum is σ = 140498224. Its totient is φ = 105373656.

The previous prime is 122935927. The next prime is 122935949. The reversal of 122935939 is 939539221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939539221 = 17 ⋅55267013.

It is a cyclic number.

It is not a de Polignac number, because 122935939 - 2⁷ = 122935811 is a prime.

It is a super-2 number, since 2×122935939² = 30226490195623442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122935895 and 122935904.

It is not an unprimeable number, because it can be changed into a prime (122935919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8781132 + ... + 8781145.

It is an arithmetic number, because the mean of its divisors is an integer number (35124556).

Almost surely, 2^122935939 is an apocalyptic number.

122935939 is a deficient number, since it is larger than the sum of its proper divisors (17562285).

122935939 is an equidigital number, since it uses as much as digits as its factorization.

122935939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17562284.

The product of its digits is 131220, while the sum is 43.

The square root of 122935939 is about 11087.6480373432. The cubic root of 122935939 is about 497.2326302540.

The spelling of 122935939 in words is "one hundred twenty-two million, nine hundred thirty-five thousand, nine hundred thirty-nine".