189322554 has 8 divisors (see below), whose sum is σ = 378645120. Its totient is φ = 63107516.

The previous prime is 189322547. The next prime is 189322559. The reversal of 189322554 is 455223981.

189322554 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.

189322554 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189322559) 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, 15776874 + ... + 15776885.

It is an arithmetic number, because the mean of its divisors is an integer number (47330640).

Almost surely, 2^189322554 is an apocalyptic number.

189322554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189322554 is a wasteful number, since it uses less digits than its factorization.

189322554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31553764.

The product of its digits is 86400, while the sum is 39.

The square root of 189322554 is about 13759.4532594867. The cubic root of 189322554 is about 574.2056368030.

The spelling of 189322554 in words is "one hundred eighty-nine million, three hundred twenty-two thousand, five hundred fifty-four".