189210112 has 160 divisors (see below), whose sum is σ = 483969024. Its totient is φ = 71884800.

The previous prime is 189210107. The next prime is 189210127. The reversal of 189210112 is 211012981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444287 + ... + 1444417.

Almost surely, 2^189210112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241984512).

189210112 is an abundant number, since it is smaller than the sum of its proper divisors (294758912).

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

189210112 is a wasteful number, since it uses less digits than its factorization.

189210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 189210112 is about 13755.3666617797. The cubic root of 189210112 is about 574.0919373430.

The spelling of 189210112 in words is "one hundred eighty-nine million, two hundred ten thousand, one hundred twelve".