189525000 has 288 divisors, whose sum is σ = 714329280. Its totient is φ = 41040000.

The previous prime is 189524969. The next prime is 189525043. The reversal of 189525000 is 525981.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9974991 + ... + 9975009.

It is an arithmetic number, because the mean of its divisors is an integer number (2480310).

Almost surely, 2^189525000 is an apocalyptic number.

189525000 is a gapful number since it is divisible by the number (10) 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 189525000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357164640).

189525000 is an abundant number, since it is smaller than the sum of its proper divisors (524804280).

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

189525000 is an equidigital number, since it uses as much as digits as its factorization.

189525000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 189525000 is about 13766.8079088800. The cubic root of 189525000 is about 574.4102333535.

The spelling of 189525000 in words is "one hundred eighty-nine million, five hundred twenty-five thousand".