128188804 has 6 divisors (see below), whose sum is σ = 224330414. Its totient is φ = 64094400.

The previous prime is 128188799. The next prime is 128188811. The reversal of 128188804 is 408881821.

It can be written as a sum of positive squares in only one way, i.e., 108118404 + 20070400 = 10398^2 + 4480^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16023597 + ... + 16023604.

Almost surely, 2^128188804 is an apocalyptic number.

It is an amenable number.

128188804 is a deficient number, since it is larger than the sum of its proper divisors (96141610).

128188804 is a wasteful number, since it uses less digits than its factorization.

128188804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32047205 (or 32047203 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 40.

The square root of 128188804 is about 11322.0494611179. The cubic root of 128188804 is about 504.2160879480.

The spelling of 128188804 in words is "one hundred twenty-eight million, one hundred eighty-eight thousand, eight hundred four".