258470117 has 4 divisors (see below), whose sum is σ = 258690156. Its totient is φ = 258250080.

The previous prime is 258470087. The next prime is 258470137. The reversal of 258470117 is 711074852.

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 176730436 + 81739681 = 13294^2 + 9041^2 .

It is a cyclic number.

It is not a de Polignac number, because 258470117 - 2¹⁴ = 258453733 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 (258470137) 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, 108248 + ... + 110609.

It is an arithmetic number, because the mean of its divisors is an integer number (64672539).

Almost surely, 2^258470117 is an apocalyptic number.

It is an amenable number.

258470117 is a deficient number, since it is larger than the sum of its proper divisors (220039).

258470117 is a wasteful number, since it uses less digits than its factorization.

258470117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220038.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 258470117 is about 16077.0058468609. The cubic root of 258470117 is about 636.9961094211.

The spelling of 258470117 in words is "two hundred fifty-eight million, four hundred seventy thousand, one hundred seventeen".