122977146 has 16 divisors (see below), whose sum is σ = 246117024. Its totient is φ = 40965264.

The previous prime is 122977123. The next prime is 122977171. The reversal of 122977146 is 641779221.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4485 + ... + 16311.

It is an arithmetic number, because the mean of its divisors is an integer number (15382314).

Almost surely, 2^122977146 is an apocalyptic number.

122977146 is an abundant number, since it is smaller than the sum of its proper divisors (123139878).

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

122977146 is a wasteful number, since it uses less digits than its factorization.

122977146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13565.

The product of its digits is 42336, while the sum is 39.

The square root of 122977146 is about 11089.5061206530. The cubic root of 122977146 is about 497.2881799880.

The spelling of 122977146 in words is "one hundred twenty-two million, nine hundred seventy-seven thousand, one hundred forty-six".