259664941 has 2 divisors, whose sum is σ = 259664942. Its totient is φ = 259664940.

The previous prime is 259664939. The next prime is 259664947. The reversal of 259664941 is 149466952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253764900 + 5900041 = 15930^2 + 2429^2 .

It is a cyclic number.

It is not a de Polignac number, because 259664941 - 2¹ = 259664939 is a prime.

Together with 259664939, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 259664891 and 259664900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259664947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129832470 + 129832471.

It is an arithmetic number, because the mean of its divisors is an integer number (129832471).

Almost surely, 2^259664941 is an apocalyptic number.

It is an amenable number.

259664941 is a deficient number, since it is larger than the sum of its proper divisors (1).

259664941 is an equidigital number, since it uses as much as digits as its factorization.

259664941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 259664941 is about 16114.1224086203. The cubic root of 259664941 is about 637.9761433741.

The spelling of 259664941 in words is "two hundred fifty-nine million, six hundred sixty-four thousand, nine hundred forty-one".