259348321 has 2 divisors, whose sum is σ = 259348322. Its totient is φ = 259348320.

The previous prime is 259348319. The next prime is 259348337. The reversal of 259348321 is 123843952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212576400 + 46771921 = 14580^2 + 6839^2 .

It is a cyclic number.

It is not a de Polignac number, because 259348321 - 2¹ = 259348319 is a prime.

Together with 259348319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (259348301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129674160 + 129674161.

It is an arithmetic number, because the mean of its divisors is an integer number (129674161).

Almost surely, 2^259348321 is an apocalyptic number.

It is an amenable number.

259348321 is a deficient number, since it is larger than the sum of its proper divisors (1).

259348321 is an equidigital number, since it uses as much as digits as its factorization.

259348321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 259348321 is about 16104.2951103114. The cubic root of 259348321 is about 637.7167345092.

The spelling of 259348321 in words is "two hundred fifty-nine million, three hundred forty-eight thousand, three hundred twenty-one".