12005127 has 24 divisors (see below), whose sum is σ = 18047744. Its totient is φ = 7683984.

The previous prime is 12005099. The next prime is 12005141. The reversal of 12005127 is 72150021.

It is not a de Polignac number, because 12005127 - 2⁷ = 12004999 is a prime.

It is a super-2 number, since 2×12005127² = 288246148572258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25698 + ... + 26160.

Almost surely, 2^12005127 is an apocalyptic number.

12005127 is a deficient number, since it is larger than the sum of its proper divisors (6042617).

12005127 is a wasteful number, since it uses less digits than its factorization.

12005127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12005127 is about 3464.8415548189. The cubic root of 12005127 is about 228.9754491456.

Adding to 12005127 its reverse (72150021), we get a palindrome (84155148).

The spelling of 12005127 in words is "twelve million, five thousand, one hundred twenty-seven".