118810189 has 2 divisors, whose sum is σ = 118810190. Its totient is φ = 118810188.

The previous prime is 118810183. The next prime is 118810199. The reversal of 118810189 is 981018811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118592100 + 218089 = 10890^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 118810189 - 2¹³ = 118801997 is a prime.

It is a super-2 number, since 2×118810189² = 28231722020431442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118810183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59405094 + 59405095.

It is an arithmetic number, because the mean of its divisors is an integer number (59405095).

Almost surely, 2^118810189 is an apocalyptic number.

It is an amenable number.

118810189 is a deficient number, since it is larger than the sum of its proper divisors (1).

118810189 is an equidigital number, since it uses as much as digits as its factorization.

118810189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 37.

The square root of 118810189 is about 10900.0086697213. The cubic root of 118810189 is about 491.6068159391.

The spelling of 118810189 in words is "one hundred eighteen million, eight hundred ten thousand, one hundred eighty-nine".