189005106 has 16 divisors (see below), whose sum is σ = 378157248. Its totient is φ = 62977200.

The previous prime is 189005071. The next prime is 189005107. The reversal of 189005106 is 601500981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (189005107) 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, 17736 + ... + 26316.

It is an arithmetic number, because the mean of its divisors is an integer number (23634828).

Almost surely, 2^189005106 is an apocalyptic number.

189005106 is an abundant number, since it is smaller than the sum of its proper divisors (189152142).

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

189005106 is a wasteful number, since it uses less digits than its factorization.

189005106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12257.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 189005106 is about 13747.9127870379. The cubic root of 189005106 is about 573.8845227358.

The spelling of 189005106 in words is "one hundred eighty-nine million, five thousand, one hundred six".