289189 has 2 divisors, whose sum is σ = 289190. Its totient is φ = 289188.

The previous prime is 289181. The next prime is 289193. The reversal of 289189 is 981982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172225 + 116964 = 415^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 289189 - 2³ = 289181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144594 + 144595.

It is an arithmetic number, because the mean of its divisors is an integer number (144595).

2²⁸⁹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

289189 is a deficient number, since it is larger than the sum of its proper divisors (1).

289189 is an equidigital number, since it uses as much as digits as its factorization.

289189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 37.

The square root of 289189 is about 537.7629589327. The cubic root of 289189 is about 66.1292996324.

The spelling of 289189 in words is "two hundred eighty-nine thousand, one hundred eighty-nine".