258095317 has 2 divisors, whose sum is σ = 258095318. Its totient is φ = 258095316.

The previous prime is 258095303. The next prime is 258095347. The reversal of 258095317 is 713590852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250620561 + 7474756 = 15831^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 258095317 - 2¹⁵ = 258062549 is a prime.

It is a super-2 number, since 2×258095317² = 133226385314660978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 258095317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258095347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129047658 + 129047659.

It is an arithmetic number, because the mean of its divisors is an integer number (129047659).

Almost surely, 2^258095317 is an apocalyptic number.

It is an amenable number.

258095317 is a deficient number, since it is larger than the sum of its proper divisors (1).

258095317 is an equidigital number, since it uses as much as digits as its factorization.

258095317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 258095317 is about 16065.3452188243. The cubic root of 258095317 is about 636.6880639660.

The spelling of 258095317 in words is "two hundred fifty-eight million, ninety-five thousand, three hundred seventeen".