239189 has 4 divisors (see below), whose sum is σ = 243756. Its totient is φ = 234624.

The previous prime is 239179. The next prime is 239201. The reversal of 239189 is 981932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58564 + 180625 = 242^2 + 425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239189 is a prime.

It is a super-2 number, since 2×239189² = 114422755442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239119) 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, 2204 + ... + 2309.

It is an arithmetic number, because the mean of its divisors is an integer number (60939).

2²³⁹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

239189 is a deficient number, since it is larger than the sum of its proper divisors (4567).

239189 is an equidigital number, since it uses as much as digits as its factorization.

239189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566.

The product of its digits is 3888, while the sum is 32.

The square root of 239189 is about 489.0695247099. The cubic root of 239189 is about 62.0745720812.

The spelling of 239189 in words is "two hundred thirty-nine thousand, one hundred eighty-nine".