258245 has 16 divisors (see below), whose sum is σ = 347760. Its totient is φ = 182784.

The previous prime is 258241. The next prime is 258253. The reversal of 258245 is 542852.

It can be written as a sum of positive squares in 8 ways, for example, as 11236 + 247009 = 106^2 + 497^2 .

It is a cyclic number.

It is not a de Polignac number, because 258245 - 2² = 258241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1817 + ... + 1953.

It is an arithmetic number, because the mean of its divisors is an integer number (21735).

2²⁵⁸²⁴⁵ is an apocalyptic number.

It is an amenable number.

258245 is a deficient number, since it is larger than the sum of its proper divisors (89515).

258245 is a wasteful number, since it uses less digits than its factorization.

258245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184.

The product of its digits is 3200, while the sum is 26.

The square root of 258245 is about 508.1781183798. The cubic root of 258245 is about 63.6811123104.

The spelling of 258245 in words is "two hundred fifty-eight thousand, two hundred forty-five".