143213223 has 16 divisors (see below), whose sum is σ = 197866080. Its totient is φ = 92029056.

The previous prime is 143213209. The next prime is 143213227. The reversal of 143213223 is 322312341.

It is not a de Polignac number, because 143213223 - 2⁸ = 143212967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143213227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75361 + ... + 77237.

It is an arithmetic number, because the mean of its divisors is an integer number (12366630).

Almost surely, 2^143213223 is an apocalyptic number.

143213223 is a deficient number, since it is larger than the sum of its proper divisors (54652857).

143213223 is a wasteful number, since it uses less digits than its factorization.

143213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its digits is 864, while the sum is 21.

The square root of 143213223 is about 11967.1727237472. The cubic root of 143213223 is about 523.1919335711.

Adding to 143213223 its reverse (322312341), we get a palindrome (465525564).

The spelling of 143213223 in words is "one hundred forty-three million, two hundred thirteen thousand, two hundred twenty-three".