189133056 has 180 divisors, whose sum is σ = 645020992. Its totient is φ = 53996544.

The previous prime is 189133051. The next prime is 189133057. The reversal of 189133056 is 650331981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 189133056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189133051) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 144501 + ... + 145803.

Almost surely, 2^189133056 is an apocalyptic number.

189133056 is a gapful number since it is divisible by the number (16) 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 189133056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322510496).

189133056 is an abundant number, since it is smaller than the sum of its proper divisors (455887936).

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

189133056 is an equidigital number, since it uses as much as digits as its factorization.

189133056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1315 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 189133056 is about 13752.5654334019. The cubic root of 189133056 is about 574.0139935967.

The spelling of 189133056 in words is "one hundred eighty-nine million, one hundred thirty-three thousand, fifty-six".