138595 has 8 divisors (see below), whose sum is σ = 169776. Its totient is φ = 108576.

The previous prime is 138587. The next prime is 138599. The reversal of 138595 is 595831.

138595 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 138595 - 2³ = 138587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4 + ... + 526.

It is an arithmetic number, because the mean of its divisors is an integer number (21222).

2¹³⁸⁵⁹⁵ is an apocalyptic number.

138595 is a deficient number, since it is larger than the sum of its proper divisors (31181).

138595 is an equidigital number, since it uses as much as digits as its factorization.

138595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its digits is 5400, while the sum is 31.

The square root of 138595 is about 372.2834941278. The cubic root of 138595 is about 51.7506553940.

The spelling of 138595 in words is "one hundred thirty-eight thousand, five hundred ninety-five".