128189032 has 16 divisors (see below), whose sum is σ = 240487200. Its totient is φ = 64059120.

The previous prime is 128189011. The next prime is 128189059. The reversal of 128189032 is 230981821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17157 + ... + 23467.

It is an arithmetic number, because the mean of its divisors is an integer number (15030450).

Almost surely, 2^128189032 is an apocalyptic number.

It is an amenable number.

128189032 is a deficient number, since it is larger than the sum of its proper divisors (112298168).

128189032 is a wasteful number, since it uses less digits than its factorization.

128189032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856 (or 8852 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 128189032 is about 11322.0595299619. The cubic root of 128189032 is about 504.2163868852.

The spelling of 128189032 in words is "one hundred twenty-eight million, one hundred eighty-nine thousand, thirty-two".