143023442 has 16 divisors (see below), whose sum is σ = 218810592. Its totient is φ = 70100160.

The previous prime is 143023421. The next prime is 143023451. The reversal of 143023442 is 244320341.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18458 + ... + 25034.

It is an arithmetic number, because the mean of its divisors is an integer number (13675662).

Almost surely, 2^143023442 is an apocalyptic number.

143023442 is a deficient number, since it is larger than the sum of its proper divisors (75787150).

143023442 is a wasteful number, since it uses less digits than its factorization.

143023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 143023442 is about 11959.2408621952. The cubic root of 143023442 is about 522.9607263825.

Adding to 143023442 its reverse (244320341), we get a palindrome (387343783).

The spelling of 143023442 in words is "one hundred forty-three million, twenty-three thousand, four hundred forty-two".