143243244 has 18 divisors (see below), whose sum is σ = 362087180. Its totient is φ = 47747736.

The previous prime is 143243239. The next prime is 143243257. The reversal of 143243244 is 442342341.

It is a happy number.

143243244 is a `hidden beast` number, since 14 + 324 + 324 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1989454 + ... + 1989525.

Almost surely, 2^143243244 is an apocalyptic number.

It is an amenable number.

143243244 is an abundant number, since it is smaller than the sum of its proper divisors (218843936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143243244 is a wasteful number, since it uses less digits than its factorization.

143243244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978989 (or 3978984 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 143243244 is about 11968.4269643091. The cubic root of 143243244 is about 523.2284889658.

Adding to 143243244 its reverse (442342341), we get a palindrome (585585585).

The spelling of 143243244 in words is "one hundred forty-three million, two hundred forty-three thousand, two hundred forty-four".