109065 has 16 divisors (see below), whose sum is σ = 190656. Its totient is φ = 52800.

The previous prime is 109063. The next prime is 109073. The reversal of 109065 is 560901.

It is not a de Polignac number, because 109065 - 2¹ = 109063 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109065.

It is not an unprimeable number, because it can be changed into a prime (109063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166 + ... + 495.

It is an arithmetic number, because the mean of its divisors is an integer number (11916).

2¹⁰⁹⁰⁶⁵ is an apocalyptic number.

109065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109065 is a deficient number, since it is larger than the sum of its proper divisors (81591).

109065 is a wasteful number, since it uses less digits than its factorization.

109065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 109065 is about 330.2499053747. The cubic root of 109065 is about 47.7780552034.

Adding to 109065 its reverse (560901), we get a palindrome (669966).

The spelling of 109065 in words is "one hundred nine thousand, sixty-five".