12835565 has 4 divisors (see below), whose sum is σ = 15402684. Its totient is φ = 10268448.

The previous prime is 12835549. The next prime is 12835567. The reversal of 12835565 is 56553821.

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 8779369 + 4056196 = 2963^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 12835565 - 2⁴ = 12835549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12835567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283552 + ... + 1283561.

It is an arithmetic number, because the mean of its divisors is an integer number (3850671).

Almost surely, 2^12835565 is an apocalyptic number.

It is an amenable number.

12835565 is a deficient number, since it is larger than the sum of its proper divisors (2567119).

12835565 is an equidigital number, since it uses as much as digits as its factorization.

12835565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567118.

The product of its digits is 36000, while the sum is 35.

The square root of 12835565 is about 3582.6756760834. The cubic root of 12835565 is about 234.1378701490.

The spelling of 12835565 in words is "twelve million, eight hundred thirty-five thousand, five hundred sixty-five".