259841 has 2 divisors, whose sum is σ = 259842. Its totient is φ = 259840.

The previous prime is 259837. The next prime is 259867. The reversal of 259841 is 148952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172225 + 87616 = 415^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 259841 - 2² = 259837 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (259801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129920 + 129921.

It is an arithmetic number, because the mean of its divisors is an integer number (129921).

259841 is a Friedman number, since it can be written as (4^5-9)*2^8+1, using all its digits and the basic arithmetic operations.

2²⁵⁹⁸⁴¹ is an apocalyptic number.

It is an amenable number.

259841 is a deficient number, since it is larger than the sum of its proper divisors (1).

259841 is an equidigital number, since it uses as much as digits as its factorization.

259841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 259841 is about 509.7460151880. The cubic root of 259841 is about 63.8120298460.

Subtracting from 259841 its reverse (148952), we obtain a square (110889 = 333²).

The spelling of 259841 in words is "two hundred fifty-nine thousand, eight hundred forty-one".