13200065 has 4 divisors (see below), whose sum is σ = 15840084. Its totient is φ = 10560048.

The previous prime is 13200001. The next prime is 13200101. The reversal of 13200065 is 56000231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56000231 = 7 ⋅8000033.

It can be written as a sum of positive squares in 2 ways, for example, as 6012304 + 7187761 = 2452^2 + 2681^2 .

It is a cyclic number.

It is not a de Polignac number, because 13200065 - 2⁶ = 13200001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1320002 + ... + 1320011.

It is an arithmetic number, because the mean of its divisors is an integer number (3960021).

Almost surely, 2^13200065 is an apocalyptic number.

It is an amenable number.

13200065 is a deficient number, since it is larger than the sum of its proper divisors (2640019).

13200065 is an equidigital number, since it uses as much as digits as its factorization.

13200065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640018.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13200065 is about 3633.1893702366. The cubic root of 13200065 is about 236.3335380134. Note that the first 3 decimals are identical.

Adding to 13200065 its reverse (56000231), we get a palindrome (69200296).

The spelling of 13200065 in words is "thirteen million, two hundred thousand, sixty-five".