138067 has 4 divisors (see below), whose sum is σ = 139536. Its totient is φ = 136600.

The previous prime is 138059. The next prime is 138071. The reversal of 138067 is 760831.

138067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 760831 = 37 ⋅20563.

It is a cyclic number.

It is not a de Polignac number, because 138067 - 2³ = 138059 is a prime.

It is a Duffinian number.

138067 is a lucky number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (138007) 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, 583 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (34884).

2¹³⁸⁰⁶⁷ is an apocalyptic number.

138067 is a deficient number, since it is larger than the sum of its proper divisors (1469).

138067 is a wasteful number, since it uses less digits than its factorization.

138067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 138067 is about 371.5736804457. The cubic root of 138067 is about 51.6848542744.

Adding to 138067 its reverse (760831), we get a palindrome (898898).

The spelling of 138067 in words is "one hundred thirty-eight thousand, sixty-seven".