13283565 has 32 divisors (see below), whose sum is σ = 22609920. Its totient is φ = 6640704.

The previous prime is 13283561. The next prime is 13283587. The reversal of 13283565 is 56538231.

It is not a de Polignac number, because 13283565 - 2² = 13283561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13283561) 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 31 ways as a sum of consecutive naturals, for example, 36012 + ... + 36378.

It is an arithmetic number, because the mean of its divisors is an integer number (706560).

Almost surely, 2^13283565 is an apocalyptic number.

13283565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13283565 is a deficient number, since it is larger than the sum of its proper divisors (9326355).

13283565 is a wasteful number, since it uses less digits than its factorization.

13283565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 21600, while the sum is 33.

The square root of 13283565 is about 3644.6625358186. The cubic root of 13283565 is about 236.8308180326.

The spelling of 13283565 in words is "thirteen million, two hundred eighty-three thousand, five hundred sixty-five".