258170 has 16 divisors (see below), whose sum is σ = 507168. Its totient is φ = 93840.

The previous prime is 258161. The next prime is 258173. The reversal of 258170 is 71852.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258170.

It is not an unprimeable number, because it can be changed into a prime (258173) by changing a digit.

258170 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (31698).

2²⁵⁸¹⁷⁰ is an apocalyptic number.

258170 is a deficient number, since it is larger than the sum of its proper divisors (248998).

258170 is a wasteful number, since it uses less digits than its factorization.

258170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 258170 is about 508.1043199974. The cubic root of 258170 is about 63.6749469173.

The spelling of 258170 in words is "two hundred fifty-eight thousand, one hundred seventy".