12127156 has 12 divisors (see below), whose sum is σ = 21252868. Its totient is φ = 6054912.

The previous prime is 12127139. The next prime is 12127177. The reversal of 12127156 is 65172121.

12127156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4343056 + 7784100 = 2084^2 + 2790^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12127156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780 + ... + 5236.

Almost surely, 2^12127156 is an apocalyptic number.

It is an amenable number.

12127156 is a deficient number, since it is larger than the sum of its proper divisors (9125712).

12127156 is a wasteful number, since it uses less digits than its factorization.

12127156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338 (or 4336 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 12127156 is about 3482.4066390931. The cubic root of 12127156 is about 229.7486605389.

Adding to 12127156 its reverse (65172121), we get a palindrome (77299277).

The spelling of 12127156 in words is "twelve million, one hundred twenty-seven thousand, one hundred fifty-six".