138820795 has 8 divisors (see below), whose sum is σ = 167129424. Its totient is φ = 110693664.

The previous prime is 138820789. The next prime is 138820807. The reversal of 138820795 is 597028831.

138820795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138820795 - 2⁷ = 138820667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43684 + ... + 46753.

It is an arithmetic number, because the mean of its divisors is an integer number (20891178).

Almost surely, 2^138820795 is an apocalyptic number.

138820795 is a deficient number, since it is larger than the sum of its proper divisors (28308629).

138820795 is an equidigital number, since it uses as much as digits as its factorization.

138820795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90749.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 138820795 is about 11782.2236865542. The cubic root of 138820795 is about 517.7874370726.

The spelling of 138820795 in words is "one hundred thirty-eight million, eight hundred twenty thousand, seven hundred ninety-five".