189017 has 2 divisors, whose sum is σ = 189018. Its totient is φ = 189016.

The previous prime is 189011. The next prime is 189019. The reversal of 189017 is 710981.

189017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175561 + 13456 = 419^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 189017 - 2⁶ = 188953 is a prime.

Together with 189019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94508 + 94509.

It is an arithmetic number, because the mean of its divisors is an integer number (94509).

2¹⁸⁹⁰¹⁷ is an apocalyptic number.

It is an amenable number.

189017 is a deficient number, since it is larger than the sum of its proper divisors (1).

189017 is an equidigital number, since it uses as much as digits as its factorization.

189017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 189017 is about 434.7608538036. The cubic root of 189017 is about 57.3896560575.

Adding to 189017 its reverse (710981), we get a palindrome (899998).

The spelling of 189017 in words is "one hundred eighty-nine thousand, seventeen".