189005361 has 8 divisors (see below), whose sum is σ = 258818304. Its totient is φ = 122598000.

The previous prime is 189005353. The next prime is 189005381. The reversal of 189005361 is 163500981.

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

It is not a de Polignac number, because 189005361 - 2³ = 189005353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189005321) 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, 851265 + ... + 851486.

It is an arithmetic number, because the mean of its divisors is an integer number (32352288).

Almost surely, 2^189005361 is an apocalyptic number.

It is an amenable number.

189005361 is a deficient number, since it is larger than the sum of its proper divisors (69812943).

189005361 is a wasteful number, since it uses less digits than its factorization.

189005361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702791.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 189005361 is about 13747.9220611698. The cubic root of 189005361 is about 573.8847808249.

The spelling of 189005361 in words is "one hundred eighty-nine million, five thousand, three hundred sixty-one".