260591 has 4 divisors (see below), whose sum is σ = 267672. Its totient is φ = 253512.

The previous prime is 260587. The next prime is 260609. The reversal of 260591 is 195062.

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 260591 - 2² = 260587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260551) 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, 3485 + ... + 3558.

It is an arithmetic number, because the mean of its divisors is an integer number (66918).

2²⁶⁰⁵⁹¹ is an apocalyptic number.

260591 is a deficient number, since it is larger than the sum of its proper divisors (7081).

260591 is an equidigital number, since it uses as much as digits as its factorization.

260591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7080.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 260591 is about 510.4811455872. The cubic root of 260591 is about 63.8733661371.

The spelling of 260591 in words is "two hundred sixty thousand, five hundred ninety-one".