138375359 has 16 divisors (see below), whose sum is σ = 149234400. Its totient is φ = 127841280.

The previous prime is 138375317. The next prime is 138375371. The reversal of 138375359 is 953573831.

It is a cyclic number.

It is not a de Polignac number, because 138375359 - 2¹² = 138371263 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 (138377359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396317 + ... + 396665.

It is an arithmetic number, because the mean of its divisors is an integer number (9327150).

Almost surely, 2^138375359 is an apocalyptic number.

138375359 is a deficient number, since it is larger than the sum of its proper divisors (10859041).

138375359 is a wasteful number, since it uses less digits than its factorization.

138375359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its digits is 340200, while the sum is 44.

The square root of 138375359 is about 11763.3056153447. The cubic root of 138375359 is about 517.2330333596.

The spelling of 138375359 in words is "one hundred thirty-eight million, three hundred seventy-five thousand, three hundred fifty-nine".