259020031 has 2 divisors, whose sum is σ = 259020032. Its totient is φ = 259020030.

The previous prime is 259020023. The next prime is 259020037. The reversal of 259020031 is 130020952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259020031 - 2³ = 259020023 is a prime.

It is a super-2 number, since 2×259020031² = 134182752918481922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 259019984 and 259020011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259020037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129510015 + 129510016.

It is an arithmetic number, because the mean of its divisors is an integer number (129510016).

Almost surely, 2^259020031 is an apocalyptic number.

259020031 is the 7198-th centered decagonal number.

259020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

259020031 is an equidigital number, since it uses as much as digits as its factorization.

259020031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 259020031 is about 16094.0992602879. The cubic root of 259020031 is about 637.4475412941.

Adding to 259020031 its reverse (130020952), we get a palindrome (389040983).

The spelling of 259020031 in words is "two hundred fifty-nine million, twenty thousand, thirty-one".