189142 has 8 divisors (see below), whose sum is σ = 300456. Its totient is φ = 88992.

The previous prime is 189139. The next prime is 189149. The reversal of 189142 is 241981.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189149) 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, 2748 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (37557).

2¹⁸⁹¹⁴² is an apocalyptic number.

189142 is a deficient number, since it is larger than the sum of its proper divisors (111314).

189142 is a wasteful number, since it uses less digits than its factorization.

189142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582.

The product of its digits is 576, while the sum is 25.

The square root of 189142 is about 434.9045872372. The cubic root of 189142 is about 57.4023041725.

The spelling of 189142 in words is "one hundred eighty-nine thousand, one hundred forty-two".