143421443 has 16 divisors (see below), whose sum is σ = 170380800. Its totient is φ = 119256480.

The previous prime is 143421413. The next prime is 143421457. The reversal of 143421443 is 344124341.

It is a cyclic number.

It is not a de Polignac number, because 143421443 - 2¹⁶ = 143355907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143421413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5771 + ... + 17892.

It is an arithmetic number, because the mean of its divisors is an integer number (10648800).

Almost surely, 2^143421443 is an apocalyptic number.

143421443 is a deficient number, since it is larger than the sum of its proper divisors (26959357).

143421443 is a wasteful number, since it uses less digits than its factorization.

143421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23722.

The product of its digits is 4608, while the sum is 26.

The square root of 143421443 is about 11975.8691960125. The cubic root of 143421443 is about 523.4453698313.

Adding to 143421443 its reverse (344124341), we get a palindrome (487545784).

The spelling of 143421443 in words is "one hundred forty-three million, four hundred twenty-one thousand, four hundred forty-three".