122555994 has 16 divisors (see below), whose sum is σ = 267395040. Its totient is φ = 37138160.

The previous prime is 122555987. The next prime is 122556013. The reversal of 122555994 is 499555221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928389 + ... + 928520.

It is an arithmetic number, because the mean of its divisors is an integer number (16712190).

Almost surely, 2^122555994 is an apocalyptic number.

122555994 is an abundant number, since it is smaller than the sum of its proper divisors (144839046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122555994 is a wasteful number, since it uses less digits than its factorization.

122555994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856925.

The product of its digits is 162000, while the sum is 42.

The square root of 122555994 is about 11070.5010726706. The cubic root of 122555994 is about 496.7198536698.

The spelling of 122555994 in words is "one hundred twenty-two million, five hundred fifty-five thousand, nine hundred ninety-four".