258073 has 4 divisors (see below), whose sum is σ = 259108. Its totient is φ = 257040.

The previous prime is 258067. The next prime is 258101. The reversal of 258073 is 370852.

258073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1024 + 257049 = 32^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 258073 - 2⁹ = 257561 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258023) 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, 115 + ... + 727.

It is an arithmetic number, because the mean of its divisors is an integer number (64777).

2²⁵⁸⁰⁷³ is an apocalyptic number.

It is an amenable number.

258073 is a deficient number, since it is larger than the sum of its proper divisors (1035).

258073 is an equidigital number, since it uses as much as digits as its factorization.

258073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 258073 is about 508.0088581905. The cubic root of 258073 is about 63.6669712378. Note that the first 3 decimals are identical.

It can be divided in two parts, 25807 and 3, that multiplied together give a triangular number (77421 = T₃₉₃).

The spelling of 258073 in words is "two hundred fifty-eight thousand, seventy-three".