128976164 has 6 divisors (see below), whose sum is σ = 225708294. Its totient is φ = 64488080.

The previous prime is 128976163. The next prime is 128976167. The reversal of 128976164 is 461679821.

It can be written as a sum of positive squares in only one way, i.e., 128822500 + 153664 = 11350^2 + 392^2 .

It is not an unprimeable number, because it can be changed into a prime (128976163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16122017 + ... + 16122024.

It is an arithmetic number, because the mean of its divisors is an integer number (37618049).

Almost surely, 2^128976164 is an apocalyptic number.

It is an amenable number.

128976164 is a deficient number, since it is larger than the sum of its proper divisors (96732130).

128976164 is a wasteful number, since it uses less digits than its factorization.

128976164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32244045 (or 32244043 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 128976164 is about 11356.7673217338. The cubic root of 128976164 is about 505.2463118919.

The spelling of 128976164 in words is "one hundred twenty-eight million, nine hundred seventy-six thousand, one hundred sixty-four".