143140232 has 8 divisors (see below), whose sum is σ = 268387950. Its totient is φ = 71570112.

The previous prime is 143140229. The next prime is 143140241. The reversal of 143140232 is 232041341.

It can be written as a sum of positive squares in only one way, i.e., 141943396 + 1196836 = 11914^2 + 1094^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8946257 + ... + 8946272.

Almost surely, 2^143140232 is an apocalyptic number.

It is an amenable number.

143140232 is a deficient number, since it is larger than the sum of its proper divisors (125247718).

143140232 is a wasteful number, since it uses less digits than its factorization.

143140232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17892535 (or 17892531 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143140232 is about 11964.1227008084. The cubic root of 143140232 is about 523.1030339774.

Adding to 143140232 its reverse (232041341), we get a palindrome (375181573).

The spelling of 143140232 in words is "one hundred forty-three million, one hundred forty thousand, two hundred thirty-two".