259318431 has 12 divisors (see below), whose sum is σ = 374741640. Its totient is φ = 172800240.

The previous prime is 259318427. The next prime is 259318439. The reversal of 259318431 is 134813952.

It is not a de Polignac number, because 259318431 - 2² = 259318427 is a prime.

It is a super-2 number, since 2×259318431² = 134492097312603522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259318439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19936 + ... + 30266.

It is an arithmetic number, because the mean of its divisors is an integer number (31228470).

Almost surely, 2^259318431 is an apocalyptic number.

259318431 is a deficient number, since it is larger than the sum of its proper divisors (115423209).

259318431 is a wasteful number, since it uses less digits than its factorization.

259318431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13126 (or 13123 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 259318431 is about 16103.3670702745. The cubic root of 259318431 is about 637.6922345298.

The spelling of 259318431 in words is "two hundred fifty-nine million, three hundred eighteen thousand, four hundred thirty-one".