259239 has 4 divisors (see below), whose sum is σ = 345656. Its totient is φ = 172824.

The previous prime is 259229. The next prime is 259271. The reversal of 259239 is 932952.

259239 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

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

It is not a de Polignac number, because 259239 - 2⁸ = 258983 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 259239.

It is not an unprimeable number, because it can be changed into a prime (259219) 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, 43204 + ... + 43209.

It is an arithmetic number, because the mean of its divisors is an integer number (86414).

2²⁵⁹²³⁹ is an apocalyptic number.

259239 is a deficient number, since it is larger than the sum of its proper divisors (86417).

259239 is an equidigital number, since it uses as much as digits as its factorization.

259239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86416.

The product of its digits is 4860, while the sum is 30.

The square root of 259239 is about 509.1551826310. The cubic root of 259239 is about 63.7627118057.

The spelling of 259239 in words is "two hundred fifty-nine thousand, two hundred thirty-nine".