138710143 has 16 divisors (see below), whose sum is σ = 163900800. Its totient is φ = 115728480.

The previous prime is 138710141. The next prime is 138710153. The reversal of 138710143 is 341017831.

It is a cyclic number.

It is not a de Polignac number, because 138710143 - 2¹ = 138710141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138710141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22888 + ... + 28306.

It is an arithmetic number, because the mean of its divisors is an integer number (10243800).

Almost surely, 2^138710143 is an apocalyptic number.

138710143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138710143 is a deficient number, since it is larger than the sum of its proper divisors (25190657).

138710143 is a wasteful number, since it uses less digits than its factorization.

138710143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 138710143 is about 11777.5270324462. The cubic root of 138710143 is about 517.6498269376.

Adding to 138710143 its reverse (341017831), we get a palindrome (479727974).

The spelling of 138710143 in words is "one hundred thirty-eight million, seven hundred ten thousand, one hundred forty-three".