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13465 = 52693

13465 has 4 divisors (see below), whose sum is σ = 16164. Its totient is φ = 10768.

The previous prime is 13463. The next prime is 13469. The reversal of 13465 is 56431.

Adding to 13465 its reverse (56431), we get a palindrome (69896).

13465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5184 + 8281 = 72^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 13465 - 21 = 13463 is a prime.

It is a Duffinian number.

13465 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (4041).

213465 is an apocalyptic number.

It is an amenable number.

13465 is a deficient number, since it is larger than the sum of its proper divisors (2699).

13465 is an equidigital number, since it uses as much as digits as its factorization.

13465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698.

The product of its digits is 360, while the sum is 19.

The square root of 13465 is about 116.0387866190. The cubic root of 13465 is about 23.7904205499.

The spelling of 13465 in words is "thirteen thousand, four hundred sixty-five".

Divisors: 1 5 2693 13465