13283605 has 4 divisors (see below), whose sum is σ = 15940332. Its totient is φ = 10626880.

The previous prime is 13283597. The next prime is 13283609. The reversal of 13283605 is 50638231.

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 8346321 + 4937284 = 2889^2 + 2222^2 .

It is not a de Polignac number, because 13283605 - 2³ = 13283597 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 (13283609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328356 + ... + 1328365.

It is an arithmetic number, because the mean of its divisors is an integer number (3985083).

Almost surely, 2^13283605 is an apocalyptic number.

It is an amenable number.

13283605 is a deficient number, since it is larger than the sum of its proper divisors (2656727).

13283605 is an equidigital number, since it uses as much as digits as its factorization.

13283605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656726.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13283605 is about 3644.6680232910. The cubic root of 13283605 is about 236.8310557505.

The spelling of 13283605 in words is "thirteen million, two hundred eighty-three thousand, six hundred five".