13812223 has 4 divisors (see below), whose sum is σ = 13848120. Its totient is φ = 13776328.

The previous prime is 13812217. The next prime is 13812229. The reversal of 13812223 is 32221831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32221831 = 863 ⋅37337.

It is an interprime number because it is at equal distance from previous prime (13812217) and next prime (13812229).

It is a cyclic number.

It is not a de Polignac number, because 13812223 - 2⁵ = 13812191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13812194 and 13812203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13812229) 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, 17365 + ... + 18142.

It is an arithmetic number, because the mean of its divisors is an integer number (3462030).

Almost surely, 2^13812223 is an apocalyptic number.

13812223 is a deficient number, since it is larger than the sum of its proper divisors (35897).

13812223 is an equidigital number, since it uses as much as digits as its factorization.

13812223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35896.

The product of its digits is 576, while the sum is 22.

The square root of 13812223 is about 3716.4799205700. The cubic root of 13812223 is about 239.9318267017.

The spelling of 13812223 in words is "thirteen million, eight hundred twelve thousand, two hundred twenty-three".