13223305 has 8 divisors (see below), whose sum is σ = 15895944. Its totient is φ = 10560000.

The previous prime is 13223299. The next prime is 13223323. The reversal of 13223305 is 50332231.

It can be written as a sum of positive squares in 4 ways, for example, as 456976 + 12766329 = 676^2 + 3573^2 .

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

It is not a de Polignac number, because 13223305 - 2¹³ = 13215113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1305 + ... + 5305.

It is an arithmetic number, because the mean of its divisors is an integer number (1986993).

Almost surely, 2^13223305 is an apocalyptic number.

It is an amenable number.

13223305 is a deficient number, since it is larger than the sum of its proper divisors (2672639).

13223305 is an equidigital number, since it uses as much as digits as its factorization.

13223305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667.

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

The square root of 13223305 is about 3636.3862556115. The cubic root of 13223305 is about 236.4721527671.

Adding to 13223305 its reverse (50332231), we get a palindrome (63555536).

The spelling of 13223305 in words is "thirteen million, two hundred twenty-three thousand, three hundred five".