118889128 has 8 divisors (see below), whose sum is σ = 222917130. Its totient is φ = 59444560.

The previous prime is 118889107. The next prime is 118889129. The reversal of 118889128 is 821988811.

It can be written as a sum of positive squares in only one way, i.e., 76352644 + 42536484 = 8738^2 + 6522^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (118889129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7430563 + ... + 7430578.

Almost surely, 2^118889128 is an apocalyptic number.

It is an amenable number.

118889128 is a deficient number, since it is larger than the sum of its proper divisors (104028002).

118889128 is a wasteful number, since it uses less digits than its factorization.

118889128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14861147 (or 14861143 counting only the distinct ones).

The product of its digits is 73728, while the sum is 46.

The square root of 118889128 is about 10903.6291206185. The cubic root of 118889128 is about 491.7156684411.

The spelling of 118889128 in words is "one hundred eighteen million, eight hundred eighty-nine thousand, one hundred twenty-eight".