258327431 has 2 divisors, whose sum is σ = 258327432. Its totient is φ = 258327430.

The previous prime is 258327413. The next prime is 258327449. The reversal of 258327431 is 134723852.

Together with previous prime (258327413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (258327413) and next prime (258327449).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258327431 is a prime.

It is a super-2 number, since 2×258327431² = 133466123214119522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258327391 and 258327400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258327481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129163715 + 129163716.

It is an arithmetic number, because the mean of its divisors is an integer number (129163716).

Almost surely, 2^258327431 is an apocalyptic number.

258327431 is a deficient number, since it is larger than the sum of its proper divisors (1).

258327431 is an equidigital number, since it uses as much as digits as its factorization.

258327431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 258327431 is about 16072.5676542362. The cubic root of 258327431 is about 636.8788719391.

The spelling of 258327431 in words is "two hundred fifty-eight million, three hundred twenty-seven thousand, four hundred thirty-one".