189158 has 8 divisors (see below), whose sum is σ = 285600. Its totient is φ = 93960.

The previous prime is 189151. The next prime is 189169. The reversal of 189158 is 851981.

It is a happy number.

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

It is a Curzon number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368 + ... + 716.

It is an arithmetic number, because the mean of its divisors is an integer number (35700).

2¹⁸⁹¹⁵⁸ is an apocalyptic number.

189158 is a deficient number, since it is larger than the sum of its proper divisors (96442).

189158 is a wasteful number, since it uses less digits than its factorization.

189158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 2880, while the sum is 32.

The square root of 189158 is about 434.9229816876. The cubic root of 189158 is about 57.4039227288.

The spelling of 189158 in words is "one hundred eighty-nine thousand, one hundred fifty-eight".