127138 has 8 divisors (see below), whose sum is σ = 208080. Its totient is φ = 57780.

The previous prime is 127133. The next prime is 127139. The reversal of 127138 is 831721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 5779 = 127138 / (1 + 2 + 7 + 1 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (127133) 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, 2868 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (26010).

2¹²⁷¹³⁸ is an apocalyptic number.

127138 is a deficient number, since it is larger than the sum of its proper divisors (80942).

127138 is a wasteful number, since it uses less digits than its factorization.

127138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792.

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

The square root of 127138 is about 356.5641597244. The cubic root of 127138 is about 50.2834566762.

Adding to 127138 its reverse (831721), we get a palindrome (958859).

It can be divided in two parts, 12713 and 8, that added together give a palindrome (12721).

The spelling of 127138 in words is "one hundred twenty-seven thousand, one hundred thirty-eight".