13305613 has 8 divisors (see below), whose sum is σ = 13576896. Its totient is φ = 13036800.

The previous prime is 13305601. The next prime is 13305641. The reversal of 13305613 is 31650331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13305613 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 (13305673) 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 7 ways as a sum of consecutive naturals, for example, 13218 + ... + 14188.

It is an arithmetic number, because the mean of its divisors is an integer number (1697112).

Almost surely, 2^13305613 is an apocalyptic number.

It is an amenable number.

13305613 is a deficient number, since it is larger than the sum of its proper divisors (271283).

13305613 is an equidigital number, since it uses as much as digits as its factorization.

13305613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 13305613 is about 3647.6859788090. The cubic root of 13305613 is about 236.9617758385.

Adding to 13305613 its reverse (31650331), we get a palindrome (44955944).

The spelling of 13305613 in words is "thirteen million, three hundred five thousand, six hundred thirteen".