122957959 has 4 divisors (see below), whose sum is σ = 123468400. Its totient is φ = 122447520.

The previous prime is 122957953. The next prime is 122958007. The reversal of 122957959 is 959759221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122957959 - 2⁵ = 122957927 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 (122957953) 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, 254859 + ... + 255340.

It is an arithmetic number, because the mean of its divisors is an integer number (30867100).

Almost surely, 2^122957959 is an apocalyptic number.

122957959 is a deficient number, since it is larger than the sum of its proper divisors (510441).

122957959 is an equidigital number, since it uses as much as digits as its factorization.

122957959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510440.

The product of its digits is 510300, while the sum is 49.

The square root of 122957959 is about 11088.6409897697. The cubic root of 122957959 is about 497.2623161998.

The spelling of 122957959 in words is "one hundred twenty-two million, nine hundred fifty-seven thousand, nine hundred fifty-nine".