258514117 has 4 divisors (see below), whose sum is σ = 261418860. Its totient is φ = 255609376.

The previous prime is 258514063. The next prime is 258514129. The reversal of 258514117 is 711415852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21538881 + 236975236 = 4641^2 + 15394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258514117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258512117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452238 + ... + 1452415.

It is an arithmetic number, because the mean of its divisors is an integer number (65354715).

Almost surely, 2^258514117 is an apocalyptic number.

It is an amenable number.

258514117 is a deficient number, since it is larger than the sum of its proper divisors (2904743).

258514117 is an equidigital number, since it uses as much as digits as its factorization.

258514117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904742.

The product of its digits is 11200, while the sum is 34.

The square root of 258514117 is about 16078.3742026363. The cubic root of 258514117 is about 637.0322531720.

Adding to 258514117 its reverse (711415852), we get a palindrome (969929969).

The spelling of 258514117 in words is "two hundred fifty-eight million, five hundred fourteen thousand, one hundred seventeen".