65189 has 8 divisors (see below), whose sum is σ = 71040. Its totient is φ = 59616.

The previous prime is 65183. The next prime is 65203. The reversal of 65189 is 98156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65189 - 2⁴ = 65173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a nialpdrome in base 4 and base 16.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857 + ... + 929.

It is an arithmetic number, because the mean of its divisors is an integer number (8880).

2⁶⁵¹⁸⁹ is an apocalyptic number.

It is an amenable number.

65189 is a deficient number, since it is larger than the sum of its proper divisors (5851).

65189 is a wasteful number, since it uses less digits than its factorization.

65189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139.

The product of its digits is 2160, while the sum is 29.

The square root of 65189 is about 255.3213661251. The cubic root of 65189 is about 40.2461899870.

The spelling of 65189 in words is "sixty-five thousand, one hundred eighty-nine".