189159 has 8 divisors (see below), whose sum is σ = 267120. Its totient is φ = 118656.

The previous prime is 189151. The next prime is 189169. The reversal of 189159 is 951981.

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

It is not a de Polignac number, because 189159 - 2³ = 189151 is a prime.

It is a super-2 number, since 2×189159² = 71562254562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1804 + ... + 1905.

It is an arithmetic number, because the mean of its divisors is an integer number (33390).

2¹⁸⁹¹⁵⁹ is an apocalyptic number.

189159 is a deficient number, since it is larger than the sum of its proper divisors (77961).

189159 is a wasteful number, since it uses less digits than its factorization.

189159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729.

The product of its digits is 3240, while the sum is 33.

The square root of 189159 is about 434.9241313149. The cubic root of 189159 is about 57.4040238856.

The spelling of 189159 in words is "one hundred eighty-nine thousand, one hundred fifty-nine".