189492027 has 4 divisors (see below), whose sum is σ = 252656040. Its totient is φ = 126328016.

The previous prime is 189492019. The next prime is 189492029. The reversal of 189492027 is 720294981.

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

It is a cyclic number.

It is not a de Polignac number, because 189492027 - 2³ = 189492019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189492027.

It is not an unprimeable number, because it can be changed into a prime (189492029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31582002 + ... + 31582007.

It is an arithmetic number, because the mean of its divisors is an integer number (63164010).

Almost surely, 2^189492027 is an apocalyptic number.

189492027 is a deficient number, since it is larger than the sum of its proper divisors (63164013).

189492027 is an equidigital number, since it uses as much as digits as its factorization.

189492027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63164012.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 189492027 is about 13765.6103024893. The cubic root of 189492027 is about 574.3769200226.

The spelling of 189492027 in words is "one hundred eighty-nine million, four hundred ninety-two thousand, twenty-seven".