258712931 has 2 divisors, whose sum is σ = 258712932. Its totient is φ = 258712930.

The previous prime is 258712903. The next prime is 258712963. The reversal of 258712931 is 139217852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258712931 - 2¹⁰ = 258711907 is a prime.

It is a super-2 number, since 2×258712931² = 133864761333221522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258712631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129356465 + 129356466.

It is an arithmetic number, because the mean of its divisors is an integer number (129356466).

Almost surely, 2^258712931 is an apocalyptic number.

258712931 is a deficient number, since it is larger than the sum of its proper divisors (1).

258712931 is an equidigital number, since it uses as much as digits as its factorization.

258712931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 258712931 is about 16084.5556668501. Note that the first 3 decimals coincide. The cubic root of 258712931 is about 637.1955175978.

The spelling of 258712931 in words is "two hundred fifty-eight million, seven hundred twelve thousand, nine hundred thirty-one".