138167 has 4 divisors (see below), whose sum is σ = 142656. Its totient is φ = 133680.

The previous prime is 138163. The next prime is 138179. The reversal of 138167 is 761831.

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 138167 - 2² = 138163 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 (138163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2198 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (35664).

2¹³⁸¹⁶⁷ is an apocalyptic number.

138167 is a deficient number, since it is larger than the sum of its proper divisors (4489).

138167 is an equidigital number, since it uses as much as digits as its factorization.

138167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its digits is 1008, while the sum is 26.

The square root of 138167 is about 371.7082189029. The cubic root of 138167 is about 51.6973294691.

Adding to 138167 its reverse (761831), we get a palindrome (899998).

The spelling of 138167 in words is "one hundred thirty-eight thousand, one hundred sixty-seven".