195089 has 2 divisors, whose sum is σ = 195090. Its totient is φ = 195088.

The previous prime is 195077. The next prime is 195103. The reversal of 195089 is 980591.

195089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146689 + 48400 = 383^2 + 220^2 .

It is an emirp because it is prime and its reverse (980591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195089 - 2¹⁶ = 129553 is a prime.

It is not a weakly prime, because it can be changed into another prime (195029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97544 + 97545.

It is an arithmetic number, because the mean of its divisors is an integer number (97545).

2¹⁹⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

195089 is a deficient number, since it is larger than the sum of its proper divisors (1).

195089 is an equidigital number, since it uses as much as digits as its factorization.

195089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 195089 is about 441.6888044766. The cubic root of 195089 is about 57.9977208775.

The spelling of 195089 in words is "one hundred ninety-five thousand, eighty-nine".