13305223 has 2 divisors, whose sum is σ = 13305224. Its totient is φ = 13305222.

The previous prime is 13305221. The next prime is 13305239. The reversal of 13305223 is 32250331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13305223 - 2¹ = 13305221 is a prime.

Together with 13305221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13305223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13305221) 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 as a sum of consecutive naturals, namely, 6652611 + 6652612.

It is an arithmetic number, because the mean of its divisors is an integer number (6652612).

Almost surely, 2^13305223 is an apocalyptic number.

13305223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13305223 is an equidigital number, since it uses as much as digits as its factorization.

13305223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 13305223 is about 3647.6325198682. The cubic root of 13305223 is about 236.9594606253.

Adding to 13305223 its reverse (32250331), we get a palindrome (45555554).

The spelling of 13305223 in words is "thirteen million, three hundred five thousand, two hundred twenty-three".