258194 has 4 divisors (see below), whose sum is σ = 387294. Its totient is φ = 129096.

The previous prime is 258173. The next prime is 258197. The reversal of 258194 is 491852.

258194 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 only one way, i.e., 237169 + 21025 = 487^2 + 145^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258194.

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 as a sum of consecutive naturals, namely, 64547 + ... + 64550.

2²⁵⁸¹⁹⁴ is an apocalyptic number.

258194 is a deficient number, since it is larger than the sum of its proper divisors (129100).

258194 is a wasteful number, since it uses less digits than its factorization.

258194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129099.

The product of its digits is 2880, while the sum is 29.

The square root of 258194 is about 508.1279366459. The cubic root of 258194 is about 63.6769199730.

The spelling of 258194 in words is "two hundred fifty-eight thousand, one hundred ninety-four".