138759163 has 4 divisors (see below), whose sum is σ = 138810240. Its totient is φ = 138708088.

The previous prime is 138759149. The next prime is 138759167. The reversal of 138759163 is 361957831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138759163 - 2⁹ = 138758651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138759167) 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, 21220 + ... + 26977.

It is an arithmetic number, because the mean of its divisors is an integer number (34702560).

Almost surely, 2^138759163 is an apocalyptic number.

138759163 is a deficient number, since it is larger than the sum of its proper divisors (51077).

138759163 is an equidigital number, since it uses as much as digits as its factorization.

138759163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51076.

The product of its digits is 136080, while the sum is 43.

The square root of 138759163 is about 11779.6079306571. The cubic root of 138759163 is about 517.7107987007.

The spelling of 138759163 in words is "one hundred thirty-eight million, seven hundred fifty-nine thousand, one hundred sixty-three".