138061 has 12 divisors (see below), whose sum is σ = 174496. Its totient is φ = 106920.

The previous prime is 138059. The next prime is 138071. The reversal of 138061 is 160831.

138061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138061 - 2¹ = 138059 is a prime.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766 + ... + 928.

2¹³⁸⁰⁶¹ is an apocalyptic number.

138061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

138061 is a deficient number, since it is larger than the sum of its proper divisors (36435).

138061 is a wasteful number, since it uses less digits than its factorization.

138061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 138061 is about 371.5656065892. The cubic root of 138061 is about 51.6841055712.

Adding to 138061 its reverse (160831), we get a palindrome (298892).

It can be divided in two parts, 1380 and 61, that added together give a palindrome (1441).

The spelling of 138061 in words is "one hundred thirty-eight thousand, sixty-one".