189081118 has 8 divisors (see below), whose sum is σ = 283692600. Its totient is φ = 94516920.

The previous prime is 189081097. The next prime is 189081119. The reversal of 189081118 is 811180981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189081119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928 + ... + 19468.

It is an arithmetic number, because the mean of its divisors is an integer number (35461575).

Almost surely, 2^189081118 is an apocalyptic number.

189081118 is a deficient number, since it is larger than the sum of its proper divisors (94611482).

189081118 is a wasteful number, since it uses less digits than its factorization.

189081118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23642.

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

The square root of 189081118 is about 13750.6770015152. The cubic root of 189081118 is about 573.9614452852.

The spelling of 189081118 in words is "one hundred eighty-nine million, eighty-one thousand, one hundred eighteen".