128803564 has 12 divisors (see below), whose sum is σ = 227052504. Its totient is φ = 63931424.

The previous prime is 128803561. The next prime is 128803573. The reversal of 128803564 is 465308821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128803561) 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, 116974 + ... + 118069.

It is an arithmetic number, because the mean of its divisors is an integer number (18921042).

Almost surely, 2^128803564 is an apocalyptic number.

It is an amenable number.

128803564 is a deficient number, since it is larger than the sum of its proper divisors (98248940).

128803564 is a wasteful number, since it uses less digits than its factorization.

128803564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235184 (or 235182 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 128803564 is about 11349.1657843209. The cubic root of 128803564 is about 505.0208323922.

The spelling of 128803564 in words is "one hundred twenty-eight million, eight hundred three thousand, five hundred sixty-four".