259151863 has 2 divisors, whose sum is σ = 259151864. Its totient is φ = 259151862.

The previous prime is 259151839. The next prime is 259151897. The reversal of 259151863 is 368151952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259151863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259151063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129575931 + 129575932.

It is an arithmetic number, because the mean of its divisors is an integer number (129575932).

Almost surely, 2^259151863 is an apocalyptic number.

259151863 is a deficient number, since it is larger than the sum of its proper divisors (1).

259151863 is an equidigital number, since it uses as much as digits as its factorization.

259151863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 259151863 is about 16098.1944018576. The cubic root of 259151863 is about 637.5556690076. Note that the first 3 decimals are identical.

The spelling of 259151863 in words is "two hundred fifty-nine million, one hundred fifty-one thousand, eight hundred sixty-three".