143443213 has 4 divisors (see below), whose sum is σ = 143467740. Its totient is φ = 143418688.

The previous prime is 143443211. The next prime is 143443241. The reversal of 143443213 is 312344341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138721284 + 4721929 = 11778^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 143443213 - 2¹ = 143443211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143443211) 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 3 ways as a sum of consecutive naturals, for example, 2181 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (35866935).

Almost surely, 2^143443213 is an apocalyptic number.

It is an amenable number.

143443213 is a deficient number, since it is larger than the sum of its proper divisors (24527).

143443213 is an equidigital number, since it uses as much as digits as its factorization.

143443213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24526.

The product of its digits is 3456, while the sum is 25.

The square root of 143443213 is about 11976.7780725870. The cubic root of 143443213 is about 523.4718531543.

Adding to 143443213 its reverse (312344341), we get a palindrome (455787554).

The spelling of 143443213 in words is "one hundred forty-three million, four hundred forty-three thousand, two hundred thirteen".