258794189 has 2 divisors, whose sum is σ = 258794190. Its totient is φ = 258794188.

The previous prime is 258794143. The next prime is 258794191. The reversal of 258794189 is 981497852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168220900 + 90573289 = 12970^2 + 9517^2 .

It is a cyclic number.

It is not a de Polignac number, because 258794189 - 2¹⁶ = 258728653 is a prime.

Together with 258794191, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258794189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258794489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129397094 + 129397095.

It is an arithmetic number, because the mean of its divisors is an integer number (129397095).

Almost surely, 2^258794189 is an apocalyptic number.

It is an amenable number.

258794189 is a deficient number, since it is larger than the sum of its proper divisors (1).

258794189 is an equidigital number, since it uses as much as digits as its factorization.

258794189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 53.

The square root of 258794189 is about 16087.0814320062. The cubic root of 258794189 is about 637.2622219218.

The spelling of 258794189 in words is "two hundred fifty-eight million, seven hundred ninety-four thousand, one hundred eighty-nine".