259909031 has 2 divisors, whose sum is σ = 259909032. Its totient is φ = 259909030.

The previous prime is 259909021. The next prime is 259909063. The reversal of 259909031 is 130909952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259909031 - 2²² = 255714727 is a prime.

It is a super-2 number, since 2×259909031² = 135105408790717922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259909021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129954515 + 129954516.

It is an arithmetic number, because the mean of its divisors is an integer number (129954516).

Almost surely, 2^259909031 is an apocalyptic number.

259909031 is a deficient number, since it is larger than the sum of its proper divisors (1).

259909031 is an equidigital number, since it uses as much as digits as its factorization.

259909031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 259909031 is about 16121.6944208728. The cubic root of 259909031 is about 638.1759840191.

The spelling of 259909031 in words is "two hundred fifty-nine million, nine hundred nine thousand, thirty-one".