189149184 has 156 divisors (see below), whose sum is σ = 625268176. Its totient is φ = 53968896.

The previous prime is 189149179. The next prime is 189149201. The reversal of 189149184 is 481941981.

189149184 is a `hidden beast` number, since 1 + 89 + 1 + 491 + 84 = 666.

189149184 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257682 + ... + 258414.

Almost surely, 2^189149184 is an apocalyptic number.

189149184 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189149184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312634088).

189149184 is an abundant number, since it is smaller than the sum of its proper divisors (436118992).

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

189149184 is an equidigital number, since it uses as much as digits as its factorization.

189149184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 745 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 189149184 is about 13753.1517842275. The cubic root of 189149184 is about 574.0303091556.

The spelling of 189149184 in words is "one hundred eighty-nine million, one hundred forty-nine thousand, one hundred eighty-four".