13223333 has 4 divisors (see below), whose sum is σ = 13679340. Its totient is φ = 12767328.

The previous prime is 13223323. The next prime is 13223339. The reversal of 13223333 is 33332231.

13223333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5026564 + 8196769 = 2242^2 + 2863^2 .

It is a cyclic number.

It is not a de Polignac number, because 13223333 - 2⁶ = 13223269 is a prime.

It is a Duffinian number.

13223333 is a modest number, since divided by 3333 gives 1322 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227960 + ... + 228017.

It is an arithmetic number, because the mean of its divisors is an integer number (3419835).

Almost surely, 2^13223333 is an apocalyptic number.

It is an amenable number.

13223333 is a deficient number, since it is larger than the sum of its proper divisors (456007).

13223333 is an equidigital number, since it uses as much as digits as its factorization.

13223333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456006.

The product of its digits is 972, while the sum is 20.

The square root of 13223333 is about 3636.3901055855. The cubic root of 13223333 is about 236.4723196749.

Adding to 13223333 its reverse (33332231), we get a palindrome (46555564).

The spelling of 13223333 in words is "thirteen million, two hundred twenty-three thousand, three hundred thirty-three".