138162 has 8 divisors (see below), whose sum is σ = 276336. Its totient is φ = 46052.

The previous prime is 138157. The next prime is 138163. The reversal of 138162 is 261831.

138162 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.

138162 is an admirable number.

138162 is a modest number, since divided by 162 gives 138 as remainder.

It is not an unprimeable number, because it can be changed into a prime (138163) by changing a digit.

138162 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11508 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (34542).

2¹³⁸¹⁶² is an apocalyptic number.

138162 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138162 is a wasteful number, since it uses less digits than its factorization.

138162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23032.

The product of its digits is 288, while the sum is 21.

The square root of 138162 is about 371.7014931366. The cubic root of 138162 is about 51.6967058523.

Adding to 138162 its reverse (261831), we get a palindrome (399993).

It can be divided in two parts, 138 and 162, that added together give a triangular number (300 = T₂₄).

The spelling of 138162 in words is "one hundred thirty-eight thousand, one hundred sixty-two".