143323442 has 8 divisors (see below), whose sum is σ = 224332416. Its totient is φ = 68545972.

The previous prime is 143323399. The next prime is 143323451. The reversal of 143323442 is 244323341.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557818 + ... + 1557909.

It is an arithmetic number, because the mean of its divisors is an integer number (28041552).

Almost surely, 2^143323442 is an apocalyptic number.

143323442 is a deficient number, since it is larger than the sum of its proper divisors (81008974).

143323442 is a wasteful number, since it uses less digits than its factorization.

143323442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115752.

The product of its digits is 6912, while the sum is 26.

The square root of 143323442 is about 11971.7768940120. The cubic root of 143323442 is about 523.3261178859.

Adding to 143323442 its reverse (244323341), we get a palindrome (387646783).

The spelling of 143323442 in words is "one hundred forty-three million, three hundred twenty-three thousand, four hundred forty-two".