13380565 has 16 divisors (see below), whose sum is σ = 17614656. Its totient is φ = 9676800.

The previous prime is 13380529. The next prime is 13380583. The reversal of 13380565 is 56508331.

It is not a de Polignac number, because 13380565 - 2¹¹ = 13378517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11029 + ... + 12181.

It is an arithmetic number, because the mean of its divisors is an integer number (1100916).

Almost surely, 2^13380565 is an apocalyptic number.

It is an amenable number.

13380565 is a deficient number, since it is larger than the sum of its proper divisors (4234091).

13380565 is a wasteful number, since it uses less digits than its factorization.

13380565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 13380565 is about 3657.9454615945. The cubic root of 13380565 is about 237.4058869956.

Adding to 13380565 its reverse (56508331), we get a palindrome (69888896).

The spelling of 13380565 in words is "thirteen million, three hundred eighty thousand, five hundred sixty-five".