12139127 has 32 divisors (see below), whose sum is σ = 16633344. Its totient is φ = 8553600.

The previous prime is 12139109. The next prime is 12139129. The reversal of 12139127 is 72193121.

It is not a de Polignac number, because 12139127 - 2¹⁰ = 12138103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12139096 and 12139105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66977 + ... + 67157.

It is an arithmetic number, because the mean of its divisors is an integer number (519792).

Almost surely, 2^12139127 is an apocalyptic number.

12139127 is a deficient number, since it is larger than the sum of its proper divisors (4494217).

12139127 is a wasteful number, since it uses less digits than its factorization.

12139127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its digits is 756, while the sum is 26.

The square root of 12139127 is about 3484.1249977577. The cubic root of 12139127 is about 229.8242324411.

The spelling of 12139127 in words is "twelve million, one hundred thirty-nine thousand, one hundred twenty-seven".