13286565 has 16 divisors (see below), whose sum is σ = 23620800. Its totient is φ = 7086096.

The previous prime is 13286561. The next prime is 13286597. The reversal of 13286565 is 56568231.

13286565 is a `hidden beast` number, since 13 + 2 + 86 + 565 = 666.

It is not a de Polignac number, because 13286565 - 2² = 13286561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13286561) 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 15 ways as a sum of consecutive naturals, for example, 49075 + ... + 49344.

It is an arithmetic number, because the mean of its divisors is an integer number (1476300).

Almost surely, 2^13286565 is an apocalyptic number.

13286565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13286565 is a deficient number, since it is larger than the sum of its proper divisors (10334235).

13286565 is an equidigital number, since it uses as much as digits as its factorization.

13286565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98433 (or 98427 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 13286565 is about 3645.0740733214. The cubic root of 13286565 is about 236.8486455504.

The spelling of 13286565 in words is "thirteen million, two hundred eighty-six thousand, five hundred sixty-five".