259291 has 4 divisors (see below), whose sum is σ = 260352. Its totient is φ = 258232.

The previous prime is 259277. The next prime is 259309. The reversal of 259291 is 192952.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 259291 - 2⁷ = 259163 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (259201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45 + ... + 721.

It is an arithmetic number, because the mean of its divisors is an integer number (65088).

2²⁵⁹²⁹¹ is an apocalyptic number.

259291 is a deficient number, since it is larger than the sum of its proper divisors (1061).

259291 is an equidigital number, since it uses as much as digits as its factorization.

259291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its digits is 1620, while the sum is 28.

The square root of 259291 is about 509.2062450520. The cubic root of 259291 is about 63.7669748466.

It can be divided in two parts, 25 and 9291, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 259291 in words is "two hundred fifty-nine thousand, two hundred ninety-one".