190427189 has 8 divisors (see below), whose sum is σ = 199143360. Its totient is φ = 181747456.

The previous prime is 190427179. The next prime is 190427257. The reversal of 190427189 is 981724091.

190427189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190427189 - 2¹⁶ = 190361653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190427119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877 + ... + 19605.

It is an arithmetic number, because the mean of its divisors is an integer number (24892920).

Almost surely, 2^190427189 is an apocalyptic number.

It is an amenable number.

190427189 is a deficient number, since it is larger than the sum of its proper divisors (8716171).

190427189 is a wasteful number, since it uses less digits than its factorization.

190427189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18219.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 190427189 is about 13799.5358255269. The cubic root of 190427189 is about 575.3202390051.

The spelling of 190427189 in words is "one hundred ninety million, four hundred twenty-seven thousand, one hundred eighty-nine".