259872631 has 2 divisors, whose sum is σ = 259872632. Its totient is φ = 259872630.

The previous prime is 259872623. The next prime is 259872647. The reversal of 259872631 is 136278952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259872631 - 2³ = 259872623 is a prime.

It is a super-2 number, since 2×259872631² = 135067568685724322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259872131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129936315 + 129936316.

It is an arithmetic number, because the mean of its divisors is an integer number (129936316).

Almost surely, 2^259872631 is an apocalyptic number.

259872631 is a deficient number, since it is larger than the sum of its proper divisors (1).

259872631 is an equidigital number, since it uses as much as digits as its factorization.

259872631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 259872631 is about 16120.5654677496. The cubic root of 259872631 is about 638.1461906587.

The spelling of 259872631 in words is "two hundred fifty-nine million, eight hundred seventy-two thousand, six hundred thirty-one".