118985589 has 12 divisors (see below), whose sum is σ = 173023500. Its totient is φ = 78790464.

The previous prime is 118985569. The next prime is 118985591. The reversal of 118985589 is 985589811.

118985589 is a `hidden beast` number, since 1 + 1 + 89 + 8 + 558 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15800625 + 103184964 = 3975^2 + 10158^2 .

It is not a de Polignac number, because 118985589 - 2⁹ = 118985077 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118985519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43024 + ... + 45705.

It is an arithmetic number, because the mean of its divisors is an integer number (14418625).

Almost surely, 2^118985589 is an apocalyptic number.

It is an amenable number.

118985589 is a deficient number, since it is larger than the sum of its proper divisors (54037911).

118985589 is a wasteful number, since it uses less digits than its factorization.

118985589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88884 (or 88881 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 54.

The square root of 118985589 is about 10908.0515675349. The cubic root of 118985589 is about 491.8486174158.

The spelling of 118985589 in words is "one hundred eighteen million, nine hundred eighty-five thousand, five hundred eighty-nine".