259233631 has 2 divisors, whose sum is σ = 259233632. Its totient is φ = 259233630.

The previous prime is 259233589. The next prime is 259233641. The reversal of 259233631 is 136332952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259233631 - 2¹⁹ = 258709343 is a prime.

It is a super-2 number, since 2×259233631² = 134404150882888322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259233641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129616815 + 129616816.

It is an arithmetic number, because the mean of its divisors is an integer number (129616816).

Almost surely, 2^259233631 is an apocalyptic number.

259233631 is a deficient number, since it is larger than the sum of its proper divisors (1).

259233631 is an equidigital number, since it uses as much as digits as its factorization.

259233631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 34.

The square root of 259233631 is about 16100.7338652622. The cubic root of 259233631 is about 637.6227161429.

The spelling of 259233631 in words is "two hundred fifty-nine million, two hundred thirty-three thousand, six hundred thirty-one".