138127 has 8 divisors (see below), whose sum is σ = 156240. Its totient is φ = 120960.

The previous prime is 138113. The next prime is 138139. The reversal of 138127 is 721831.

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 138127 - 2⁷ = 137999 is a prime.

It is a super-3 number, since 3×138127³ = 7906003330363149, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138098 and 138107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138107) 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, 103 + ... + 535.

It is an arithmetic number, because the mean of its divisors is an integer number (19530).

2¹³⁸¹²⁷ is an apocalyptic number.

138127 is a deficient number, since it is larger than the sum of its proper divisors (18113).

138127 is a wasteful number, since it uses less digits than its factorization.

138127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 336, while the sum is 22.

The square root of 138127 is about 371.6544093644. The cubic root of 138127 is about 51.6923401138.

Adding to 138127 its reverse (721831), we get a palindrome (859958).

The spelling of 138127 in words is "one hundred thirty-eight thousand, one hundred twenty-seven".