122919788 has 12 divisors (see below), whose sum is σ = 217198800. Its totient is φ = 60862992.

The previous prime is 122919761. The next prime is 122919793. The reversal of 122919788 is 887919221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148763 + ... + 149586.

It is an arithmetic number, because the mean of its divisors is an integer number (18099900).

Almost surely, 2^122919788 is an apocalyptic number.

It is an amenable number.

122919788 is a deficient number, since it is larger than the sum of its proper divisors (94279012).

122919788 is a wasteful number, since it uses less digits than its factorization.

122919788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298456 (or 298454 counting only the distinct ones).

The product of its digits is 145152, while the sum is 47.

The square root of 122919788 is about 11086.9196804162. The cubic root of 122919788 is about 497.2108542624.

The spelling of 122919788 in words is "one hundred twenty-two million, nine hundred nineteen thousand, seven hundred eighty-eight".