189969171 has 8 divisors (see below), whose sum is σ = 289476864. Its totient is φ = 108553800.

The previous prime is 189969161. The next prime is 189969179. The reversal of 189969171 is 171969981.

189969171 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 not a de Polignac number, because 189969171 - 2¹⁴ = 189952787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189969179) 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, 4523055 + ... + 4523096.

It is an arithmetic number, because the mean of its divisors is an integer number (36184608).

Almost surely, 2^189969171 is an apocalyptic number.

189969171 is a deficient number, since it is larger than the sum of its proper divisors (99507693).

189969171 is an equidigital number, since it uses as much as digits as its factorization.

189969171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046161.

The product of its digits is 244944, while the sum is 51.

The square root of 189969171 is about 13782.9304213582. The cubic root of 189969171 is about 574.8586127480.

The spelling of 189969171 in words is "one hundred eighty-nine million, nine hundred sixty-nine thousand, one hundred seventy-one".