128945176 has 16 divisors (see below), whose sum is σ = 252284400. Its totient is φ = 61669344.

The previous prime is 128945161. The next prime is 128945177. The reversal of 128945176 is 671549821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128945177) 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, 350211 + ... + 350578.

It is an arithmetic number, because the mean of its divisors is an integer number (15767775).

Almost surely, 2^128945176 is an apocalyptic number.

It is an amenable number.

128945176 is a deficient number, since it is larger than the sum of its proper divisors (123339224).

128945176 is a wasteful number, since it uses less digits than its factorization.

128945176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700818 (or 700814 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 128945176 is about 11355.4029430928. The cubic root of 128945176 is about 505.2058449139.

The spelling of 128945176 in words is "one hundred twenty-eight million, nine hundred forty-five thousand, one hundred seventy-six".