143112242 has 36 divisors (see below), whose sum is σ = 270434106. Its totient is φ = 56609280.

The previous prime is 143112209. The next prime is 143112259. The reversal of 143112242 is 242211341.

It can be written as a sum of positive squares in 3 ways, for example, as 30349081 + 112763161 = 5509^2 + 10619^2 .

It is a super-2 number, since 2×143112242² = 40962227620533128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12242 + ... + 20882.

Almost surely, 2^143112242 is an apocalyptic number.

143112242 is a deficient number, since it is larger than the sum of its proper divisors (127321864).

143112242 is a wasteful number, since it uses less digits than its factorization.

143112242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683 (or 8663 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 143112242 is about 11962.9528963379. The cubic root of 143112242 is about 523.0689354616.

Adding to 143112242 its reverse (242211341), we get a palindrome (385323583).

Subtracting 143112242 from its reverse (242211341), we obtain a palindrome (99099099).

The spelling of 143112242 in words is "one hundred forty-three million, one hundred twelve thousand, two hundred forty-two".