189564130 has 32 divisors (see below), whose sum is σ = 390904704. Its totient is φ = 64836096.

The previous prime is 189564079. The next prime is 189564131. The reversal of 189564130 is 31465981.

189564130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189564130.

It is not an unprimeable number, because it can be changed into a prime (189564131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27954 + ... + 34066.

It is an arithmetic number, because the mean of its divisors is an integer number (12215772).

Almost surely, 2^189564130 is an apocalyptic number.

189564130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189564130 is an abundant number, since it is smaller than the sum of its proper divisors (201340574).

189564130 is a wasteful number, since it uses less digits than its factorization.

189564130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 189564130 is about 13768.2290073923. The cubic root of 189564130 is about 574.4497622209.

The spelling of 189564130 in words is "one hundred eighty-nine million, five hundred sixty-four thousand, one hundred thirty".