258312311 has 2 divisors, whose sum is σ = 258312312. Its totient is φ = 258312310.

The previous prime is 258312293. The next prime is 258312323. The reversal of 258312311 is 113213852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258312311 - 2²⁶ = 191203447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258312371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129156155 + 129156156.

It is an arithmetic number, because the mean of its divisors is an integer number (129156156).

Almost surely, 2^258312311 is an apocalyptic number.

258312311 is a deficient number, since it is larger than the sum of its proper divisors (1).

258312311 is an equidigital number, since it uses as much as digits as its factorization.

258312311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 258312311 is about 16072.0972806912. The cubic root of 258312311 is about 636.8664461114.

The spelling of 258312311 in words is "two hundred fifty-eight million, three hundred twelve thousand, three hundred eleven".