258862117 has 2 divisors, whose sum is σ = 258862118. Its totient is φ = 258862116.

The previous prime is 258862067. The next prime is 258862129. The reversal of 258862117 is 711268852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253414561 + 5447556 = 15919^2 + 2334^2 .

It is a cyclic number.

It is not a de Polignac number, because 258862117 - 2⁷ = 258861989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258862117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258862817) 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, 129431058 + 129431059.

It is an arithmetic number, because the mean of its divisors is an integer number (129431059).

Almost surely, 2^258862117 is an apocalyptic number.

It is an amenable number.

258862117 is a deficient number, since it is larger than the sum of its proper divisors (1).

258862117 is an equidigital number, since it uses as much as digits as its factorization.

258862117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 40.

The square root of 258862117 is about 16089.1925527666. The cubic root of 258862117 is about 637.3179729951.

The spelling of 258862117 in words is "two hundred fifty-eight million, eight hundred sixty-two thousand, one hundred seventeen".