189565120 has 28 divisors (see below), whose sum is σ = 451402704. Its totient is φ = 75825920.

The previous prime is 189565091. The next prime is 189565127. The reversal of 189565120 is 21565981.

It is a super-2 number, since 2×189565120² = 71869869441228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189565120.

It is not an unprimeable number, because it can be changed into a prime (189565127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295876 + ... + 296515.

Almost surely, 2^189565120 is an apocalyptic number.

189565120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189565120 is an abundant number, since it is smaller than the sum of its proper divisors (261837584).

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

189565120 is an equidigital number, since it uses as much as digits as its factorization.

189565120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592408 (or 592398 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 189565120 is about 13768.2649596817. The cubic root of 189565120 is about 574.4507622417.

The spelling of 189565120 in words is "one hundred eighty-nine million, five hundred sixty-five thousand, one hundred twenty".