259243 has 4 divisors (see below), whose sum is σ = 265608. Its totient is φ = 252880.

The previous prime is 259229. The next prime is 259271. The reversal of 259243 is 342952.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 259243 - 2⁵ = 259211 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259213) 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, 3121 + ... + 3202.

It is an arithmetic number, because the mean of its divisors is an integer number (66402).

2²⁵⁹²⁴³ is an apocalyptic number.

259243 is a deficient number, since it is larger than the sum of its proper divisors (6365).

259243 is an equidigital number, since it uses as much as digits as its factorization.

259243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364.

The product of its digits is 2160, while the sum is 25.

The square root of 259243 is about 509.1591106913. The cubic root of 259243 is about 63.7630397522.

The spelling of 259243 in words is "two hundred fifty-nine thousand, two hundred forty-three".