12127412 has 12 divisors (see below), whose sum is σ = 23152416. Its totient is φ = 5512440.

The previous prime is 12127411. The next prime is 12127433. The reversal of 12127412 is 21472121.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137768 + ... + 137855.

It is an arithmetic number, because the mean of its divisors is an integer number (1929368).

Almost surely, 2^12127412 is an apocalyptic number.

It is an amenable number.

12127412 is a deficient number, since it is larger than the sum of its proper divisors (11025004).

12127412 is a wasteful number, since it uses less digits than its factorization.

12127412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275638 (or 275636 counting only the distinct ones).

The product of its digits is 224, while the sum is 20.

The square root of 12127412 is about 3482.4433950891. The cubic root of 12127412 is about 229.7502771654.

Adding to 12127412 its reverse (21472121), we get a palindrome (33599533).

The spelling of 12127412 in words is "twelve million, one hundred twenty-seven thousand, four hundred twelve".