13002865 has 8 divisors (see below), whose sum is σ = 15627240. Its totient is φ = 10386432.

The previous prime is 13002809. The next prime is 13002877. The reversal of 13002865 is 56820031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5841889 + 7160976 = 2417^2 + 2676^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13002865 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2577 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (1953405).

Almost surely, 2^13002865 is an apocalyptic number.

It is an amenable number.

13002865 is a deficient number, since it is larger than the sum of its proper divisors (2624375).

13002865 is an equidigital number, since it uses as much as digits as its factorization.

13002865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13002865 is about 3605.9485575920. The cubic root of 13002865 is about 235.1507407697.

Adding to 13002865 its reverse (56820031), we get a palindrome (69822896).

The spelling of 13002865 in words is "thirteen million, two thousand, eight hundred sixty-five".