13206065 has 16 divisors (see below), whose sum is σ = 16273488. Its totient is φ = 10285056.

The previous prime is 13206043. The next prime is 13206131. The reversal of 13206065 is 56060231.

It can be written as a sum of positive squares in 8 ways, for example, as 21904 + 13184161 = 148^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 13206065 - 2⁶ = 13206001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13206065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35219 + ... + 35591.

It is an arithmetic number, because the mean of its divisors is an integer number (1017093).

Almost surely, 2^13206065 is an apocalyptic number.

It is an amenable number.

13206065 is a deficient number, since it is larger than the sum of its proper divisors (3067423).

13206065 is an equidigital number, since it uses as much as digits as its factorization.

13206065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13206065 is about 3634.0149972173. The cubic root of 13206065 is about 236.3693405249.

Adding to 13206065 its reverse (56060231), we get a palindrome (69266296).

The spelling of 13206065 in words is "thirteen million, two hundred six thousand, sixty-five".