13247223 has 16 divisors (see below), whose sum is σ = 19740672. Its totient is φ = 7832000.

The previous prime is 13247207. The next prime is 13247239. The reversal of 13247223 is 32274231.

It is an interprime number because it is at equal distance from previous prime (13247207) and next prime (13247239).

It is not a de Polignac number, because 13247223 - 2⁴ = 13247207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13247193 and 13247202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247203) 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 15 ways as a sum of consecutive naturals, for example, 3543 + ... + 6248.

It is an arithmetic number, because the mean of its divisors is an integer number (1233792).

Almost surely, 2^13247223 is an apocalyptic number.

13247223 is a deficient number, since it is larger than the sum of its proper divisors (6493449).

13247223 is a wasteful number, since it uses less digits than its factorization.

13247223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9846.

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

The square root of 13247223 is about 3639.6734743655. The cubic root of 13247223 is about 236.6146419623.

The spelling of 13247223 in words is "thirteen million, two hundred forty-seven thousand, two hundred twenty-three".