143139688 has 16 divisors (see below), whose sum is σ = 268534980. Its totient is φ = 71530368.

The previous prime is 143139683. The next prime is 143139701. The reversal of 143139688 is 886931341.

It can be written as a sum of positive squares in 2 ways, for example, as 142993764 + 145924 = 11958^2 + 382^2 .

It is not an unprimeable number, because it can be changed into a prime (143139683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15406 + ... + 22882.

Almost surely, 2^143139688 is an apocalyptic number.

It is an amenable number.

143139688 is a deficient number, since it is larger than the sum of its proper divisors (125395292).

143139688 is a wasteful number, since it uses less digits than its factorization.

143139688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876 (or 9872 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 143139688 is about 11964.0999661487. The cubic root of 143139688 is about 523.1023712976.

The spelling of 143139688 in words is "one hundred forty-three million, one hundred thirty-nine thousand, six hundred eighty-eight".