12126156 has 48 divisors (see below), whose sum is σ = 32524800. Its totient is φ = 3444480.

The previous prime is 12126139. The next prime is 12126157. The reversal of 12126156 is 65162121.

12126156 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

12126156 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (12126157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19945 + ... + 20543.

It is an arithmetic number, because the mean of its divisors is an integer number (677600).

Almost surely, 2^12126156 is an apocalyptic number.

It is an amenable number.

12126156 is an abundant number, since it is smaller than the sum of its proper divisors (20398644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12126156 is a wasteful number, since it uses less digits than its factorization.

12126156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 852 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 12126156 is about 3482.2630572661. The cubic root of 12126156 is about 229.7423453738.

Adding to 12126156 its reverse (65162121), we get a palindrome (77288277).

The spelling of 12126156 in words is "twelve million, one hundred twenty-six thousand, one hundred fifty-six".