189568512 has 200 divisors, whose sum is σ = 647632656. Its totient is φ = 54079488.

The previous prime is 189568499. The next prime is 189568523. The reversal of 189568512 is 215865981.

It is a happy number.

189568512 is a `hidden beast` number, since 1 + 89 + 56 + 8 + 512 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 289978 + ... + 290630.

Almost surely, 2^189568512 is an apocalyptic number.

189568512 is a gapful number since it is divisible by the number (12) 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 189568512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323816328).

189568512 is an abundant number, since it is smaller than the sum of its proper divisors (458064144).

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

189568512 is an frugal number, since it uses more digits than its factorization.

189568512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 665 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 189568512 is about 13768.3881409554. The cubic root of 189568512 is about 574.4541885496.

It can be divided in two parts, 1895 and 68512, that added together give a palindrome (70407).

The spelling of 189568512 in words is "one hundred eighty-nine million, five hundred sixty-eight thousand, five hundred twelve".