189523227 has 4 divisors (see below), whose sum is σ = 252697640. Its totient is φ = 126348816.

The previous prime is 189523189. The next prime is 189523237. The reversal of 189523227 is 722325981.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 189523227 - 2²⁰ = 188474651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189523237) 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, 31587202 + ... + 31587207.

It is an arithmetic number, because the mean of its divisors is an integer number (63174410).

Almost surely, 2^189523227 is an apocalyptic number.

189523227 is a deficient number, since it is larger than the sum of its proper divisors (63174413).

189523227 is an equidigital number, since it uses as much as digits as its factorization.

189523227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63174412.

The product of its digits is 60480, while the sum is 39.

The square root of 189523227 is about 13766.7435147169. The cubic root of 189523227 is about 574.4084421518.

The spelling of 189523227 in words is "one hundred eighty-nine million, five hundred twenty-three thousand, two hundred twenty-seven".