189713118 has 32 divisors (see below), whose sum is σ = 447621120. Its totient is φ = 52454880.

The previous prime is 189713107. The next prime is 189713123. The reversal of 189713118 is 811317981.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71553 + ... + 74156.

It is an arithmetic number, because the mean of its divisors is an integer number (13988160).

Almost surely, 2^189713118 is an apocalyptic number.

189713118 is an abundant number, since it is smaller than the sum of its proper divisors (257908002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189713118 is a wasteful number, since it uses less digits than its factorization.

189713118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145752.

The product of its digits is 12096, while the sum is 39.

The square root of 189713118 is about 13773.6385171094. The cubic root of 189713118 is about 574.6002191468.

The spelling of 189713118 in words is "one hundred eighty-nine million, seven hundred thirteen thousand, one hundred eighteen".