259091867 has 2 divisors, whose sum is σ = 259091868. Its totient is φ = 259091866.

The previous prime is 259091863. The next prime is 259091869. The reversal of 259091867 is 768190952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259091867 - 2² = 259091863 is a prime.

Together with 259091869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (259091863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129545933 + 129545934.

It is an arithmetic number, because the mean of its divisors is an integer number (129545934).

Almost surely, 2^259091867 is an apocalyptic number.

259091867 is a deficient number, since it is larger than the sum of its proper divisors (1).

259091867 is an equidigital number, since it uses as much as digits as its factorization.

259091867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 259091867 is about 16096.3308551980. The cubic root of 259091867 is about 637.5064652426.

The spelling of 259091867 in words is "two hundred fifty-nine million, ninety-one thousand, eight hundred sixty-seven".