12144127 has 4 divisors (see below), whose sum is σ = 12562920. Its totient is φ = 11725336.

The previous prime is 12144113. The next prime is 12144131. The reversal of 12144127 is 72144121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12144127 - 2¹¹ = 12142079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12144098 and 12144107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209353 + ... + 209410.

It is an arithmetic number, because the mean of its divisors is an integer number (3140730).

Almost surely, 2^12144127 is an apocalyptic number.

12144127 is a deficient number, since it is larger than the sum of its proper divisors (418793).

12144127 is an equidigital number, since it uses as much as digits as its factorization.

12144127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418792.

The product of its digits is 448, while the sum is 22.

The square root of 12144127 is about 3484.8424641582. The cubic root of 12144127 is about 229.8557823054.

Adding to 12144127 its reverse (72144121), we get a palindrome (84288248).

The spelling of 12144127 in words is "twelve million, one hundred forty-four thousand, one hundred twenty-seven".