258193 has 4 divisors (see below), whose sum is σ = 278068. Its totient is φ = 238320.

The previous prime is 258173. The next prime is 258197. The reversal of 258193 is 391852.

258193 is nontrivially palindromic in base 12.

258193 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.

It can be written as a sum of positive squares in 2 ways, for example, as 16129 + 242064 = 127^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 258193 - 2⁵ = 258161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258197) 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, 9918 + ... + 9943.

It is an arithmetic number, because the mean of its divisors is an integer number (69517).

2²⁵⁸¹⁹³ is an apocalyptic number.

It is an amenable number.

258193 is a deficient number, since it is larger than the sum of its proper divisors (19875).

258193 is a wasteful number, since it uses less digits than its factorization.

258193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19874.

The product of its digits is 2160, while the sum is 28.

The square root of 258193 is about 508.1269526408. The cubic root of 258193 is about 63.6768377648.

It can be divided in two parts, 258 and 193, that multiplied together give a palindrome (49794).

The spelling of 258193 in words is "two hundred fifty-eight thousand, one hundred ninety-three".