13222743 has 4 divisors (see below), whose sum is σ = 17630328. Its totient is φ = 8815160.

The previous prime is 13222733. The next prime is 13222751. The reversal of 13222743 is 34722231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13222743 - 2⁵ = 13222711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203788 + ... + 2203793.

It is an arithmetic number, because the mean of its divisors is an integer number (4407582).

Almost surely, 2^13222743 is an apocalyptic number.

13222743 is a deficient number, since it is larger than the sum of its proper divisors (4407585).

13222743 is an equidigital number, since it uses as much as digits as its factorization.

13222743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407584.

The product of its digits is 2016, while the sum is 24.

The square root of 13222743 is about 3636.3089802711. The cubic root of 13222743 is about 236.4688026406.

Adding to 13222743 its reverse (34722231), we get a palindrome (47944974).

The spelling of 13222743 in words is "thirteen million, two hundred twenty-two thousand, seven hundred forty-three".