138371075 has 24 divisors (see below), whose sum is σ = 185131008. Its totient is φ = 102202880.

The previous prime is 138371071. The next prime is 138371081. The reversal of 138371075 is 570173831.

It is not a de Polignac number, because 138371075 - 2² = 138371071 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138371071) 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 23 ways as a sum of consecutive naturals, for example, 19454 + ... + 25596.

It is an arithmetic number, because the mean of its divisors is an integer number (7713792).

Almost surely, 2^138371075 is an apocalyptic number.

138371075 is a deficient number, since it is larger than the sum of its proper divisors (46759933).

138371075 is a wasteful number, since it uses less digits than its factorization.

138371075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223 (or 6218 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 138371075 is about 11763.1235222623. The cubic root of 138371075 is about 517.2276955856.

The spelling of 138371075 in words is "one hundred thirty-eight million, three hundred seventy-one thousand, seventy-five".