189512198 has 16 divisors (see below), whose sum is σ = 289430064. Its totient is φ = 93050880.

The previous prime is 189512173. The next prime is 189512201. The reversal of 189512198 is 891215981.

189512198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21686 + ... + 29142.

It is an arithmetic number, because the mean of its divisors is an integer number (18089379).

Almost surely, 2^189512198 is an apocalyptic number.

189512198 is a deficient number, since it is larger than the sum of its proper divisors (99917866).

189512198 is a wasteful number, since it uses less digits than its factorization.

189512198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687.

The product of its digits is 51840, while the sum is 44.

The square root of 189512198 is about 13766.3429421179. The cubic root of 189512198 is about 574.3972996766.

The spelling of 189512198 in words is "one hundred eighty-nine million, five hundred twelve thousand, one hundred ninety-eight".