143643422 has 8 divisors (see below), whose sum is σ = 232039416. Its totient is φ = 66296952.

The previous prime is 143643407. The next prime is 143643427. The reversal of 143643422 is 224346341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143643427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762348 + ... + 2762399.

It is an arithmetic number, because the mean of its divisors is an integer number (29004927).

Almost surely, 2^143643422 is an apocalyptic number.

143643422 is a deficient number, since it is larger than the sum of its proper divisors (88395994).

143643422 is a wasteful number, since it uses less digits than its factorization.

143643422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524762.

The product of its digits is 13824, while the sum is 29.

The square root of 143643422 is about 11985.1333743100. The cubic root of 143643422 is about 523.7152829463.

Adding to 143643422 its reverse (224346341), we get a palindrome (367989763).

The spelling of 143643422 in words is "one hundred forty-three million, six hundred forty-three thousand, four hundred twenty-two".