143222443 has 24 divisors (see below), whose sum is σ = 180731040. Its totient is φ = 112492800.

The previous prime is 143222413. The next prime is 143222473. The reversal of 143222443 is 344222341.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (143222413) and next prime (143222473).

It is not a de Polignac number, because 143222443 - 2⁵ = 143222411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143222413) 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 23 ways as a sum of consecutive naturals, for example, 95443 + ... + 96931.

It is an arithmetic number, because the mean of its divisors is an integer number (7530460).

Almost surely, 2^143222443 is an apocalyptic number.

143222443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

143222443 is a deficient number, since it is larger than the sum of its proper divisors (37508597).

143222443 is a wasteful number, since it uses less digits than its factorization.

143222443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1660 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 143222443 is about 11967.5579380256. The cubic root of 143222443 is about 523.2031609471.

Adding to 143222443 its reverse (344222341), we get a palindrome (487444784).

The spelling of 143222443 in words is "one hundred forty-three million, two hundred twenty-two thousand, four hundred forty-three".