189524881 has 12 divisors (see below), whose sum is σ = 234544512. Its totient is φ = 149952816.

The previous prime is 189524833. The next prime is 189524887. The reversal of 189524881 is 188425981.

It is a happy number.

It is not a de Polignac number, because 189524881 - 2⁹ = 189524369 is a prime.

It is a super-2 number, since 2×189524881² = 71839361036128322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189524887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78921 + ... + 81286.

It is an arithmetic number, because the mean of its divisors is an integer number (19545376).

Almost surely, 2^189524881 is an apocalyptic number.

It is an amenable number.

189524881 is a deficient number, since it is larger than the sum of its proper divisors (45019631).

189524881 is a wasteful number, since it uses less digits than its factorization.

189524881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160240 (or 160227 counting only the distinct ones).

The product of its digits is 184320, while the sum is 46.

The square root of 189524881 is about 13766.8035868897. The cubic root of 189524881 is about 574.4101131322.

The spelling of 189524881 in words is "one hundred eighty-nine million, five hundred twenty-four thousand, eight hundred eighty-one".