259481 has 4 divisors (see below), whose sum is σ = 266532. Its totient is φ = 252432.

The previous prime is 259459. The next prime is 259499. The reversal of 259481 is 184952.

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

It can be written as a sum of positive squares in 2 ways, for example, as 225625 + 33856 = 475^2 + 184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259481 is a prime.

It is a super-2 number, since 2×259481² = 134660778722, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 259481.

It is not an unprimeable number, because it can be changed into a prime (259411) 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, 3470 + ... + 3543.

It is an arithmetic number, because the mean of its divisors is an integer number (66633).

2²⁵⁹⁴⁸¹ is an apocalyptic number.

It is an amenable number.

259481 is a deficient number, since it is larger than the sum of its proper divisors (7051).

259481 is an equidigital number, since it uses as much as digits as its factorization.

259481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050.

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

The square root of 259481 is about 509.3927757635. The cubic root of 259481 is about 63.7825464979.

Subtracting from 259481 its reverse (184952), we obtain a square (74529 = 273²).

The spelling of 259481 in words is "two hundred fifty-nine thousand, four hundred eighty-one".