143138138 has 16 divisors (see below), whose sum is σ = 252243936. Its totient is φ = 60057840.

The previous prime is 143138137. The next prime is 143138141. The reversal of 143138138 is 831831341.

It is not an unprimeable number, because it can be changed into a prime (143138137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249956 + ... + 250527.

It is an arithmetic number, because the mean of its divisors is an integer number (15765246).

Almost surely, 2^143138138 is an apocalyptic number.

143138138 is a deficient number, since it is larger than the sum of its proper divisors (109105798).

143138138 is a wasteful number, since it uses less digits than its factorization.

143138138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500509.

The product of its digits is 6912, while the sum is 32.

The square root of 143138138 is about 11964.0351888483. The cubic root of 143138138 is about 523.1004831383.

Adding to 143138138 its reverse (831831341), we get a palindrome (974969479).

The spelling of 143138138 in words is "one hundred forty-three million, one hundred thirty-eight thousand, one hundred thirty-eight".