13083865 has 4 divisors (see below), whose sum is σ = 15700644. Its totient is φ = 10467088.

The previous prime is 13083859. The next prime is 13083869. The reversal of 13083865 is 56838031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1713481 + 11370384 = 1309^2 + 3372^2 .

It is a cyclic number.

It is not a de Polignac number, because 13083865 - 2³ = 13083857 is a prime.

It is a super-3 number, since 3×13083865³ (a number of 22 digits) contains 333 as substring.

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 13083865.

It is not an unprimeable number, because it can be changed into a prime (13083869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308382 + ... + 1308391.

It is an arithmetic number, because the mean of its divisors is an integer number (3925161).

Almost surely, 2^13083865 is an apocalyptic number.

It is an amenable number.

13083865 is a deficient number, since it is larger than the sum of its proper divisors (2616779).

13083865 is an equidigital number, since it uses as much as digits as its factorization.

13083865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616778.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 13083865 is about 3617.1625620091. The cubic root of 13083865 is about 235.6380127527.

The spelling of 13083865 in words is "thirteen million, eighty-three thousand, eight hundred sixty-five".