258115 has 24 divisors (see below), whose sum is σ = 384048. Its totient is φ = 164160.

The previous prime is 258113. The next prime is 258119. The reversal of 258115 is 511852.

258115 = T₉₅ + T₉₆ + ... + T₁₃₃.

258115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258115 - 2¹ = 258113 is a prime.

It is a Duffinian number.

258115 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (258113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13576 + ... + 13594.

It is an arithmetic number, because the mean of its divisors is an integer number (16002).

2²⁵⁸¹¹⁵ is an apocalyptic number.

258115 is a deficient number, since it is larger than the sum of its proper divisors (125933).

258115 is a wasteful number, since it uses less digits than its factorization.

258115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 48 counting only the distinct ones).

The product of its digits is 400, while the sum is 22.

The square root of 258115 is about 508.0501943706. The cubic root of 258115 is about 63.6704248701.

Adding to 258115 its reverse (511852), we get a palindrome (769967).

It can be divided in two parts, 258 and 115, that added together give a palindrome (373).

The spelling of 258115 in words is "two hundred fifty-eight thousand, one hundred fifteen".