189000189 has 32 divisors (see below), whose sum is σ = 323201280. Its totient is φ = 106920000.

The previous prime is 189000167. The next prime is 189000197. The reversal of 189000189 is 981000981.

It is not a de Polignac number, because 189000189 - 2⁷ = 189000061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189000289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14139 + ... + 24039.

It is an arithmetic number, because the mean of its divisors is an integer number (10100040).

Almost surely, 2^189000189 is an apocalyptic number.

It is an amenable number.

189000189 is a deficient number, since it is larger than the sum of its proper divisors (134201091).

189000189 is a wasteful number, since it uses less digits than its factorization.

189000189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018 (or 10012 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 189000189 is about 13747.7339587293. The cubic root of 189000189 is about 573.8795461248.

The spelling of 189000189 in words is "one hundred eighty-nine million, one hundred eighty-nine", and thus it is an aban number.