13143223 has 2 divisors, whose sum is σ = 13143224. Its totient is φ = 13143222.

The previous prime is 13143217. The next prime is 13143233. The reversal of 13143223 is 32234131.

13143223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (32234131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13143223 - 2⁹ = 13142711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13143223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13143203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571611 + 6571612.

It is an arithmetic number, because the mean of its divisors is an integer number (6571612).

Almost surely, 2^13143223 is an apocalyptic number.

13143223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143223 is an equidigital number, since it uses as much as digits as its factorization.

13143223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 13143223 is about 3625.3583271175. The cubic root of 13143223 is about 235.9938174671.

Adding to 13143223 its reverse (32234131), we get a palindrome (45377354).

It can be divided in two parts, 13143 and 223, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 13143223 in words is "thirteen million, one hundred forty-three thousand, two hundred twenty-three".