12726156 has 12 divisors (see below), whose sum is σ = 29694392. Its totient is φ = 4242048.

The previous prime is 12726127. The next prime is 12726167. The reversal of 12726156 is 65162721.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 530245 + ... + 530268.

Almost surely, 2^12726156 is an apocalyptic number.

It is an amenable number.

12726156 is an abundant number, since it is smaller than the sum of its proper divisors (16968236).

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

12726156 is a wasteful number, since it uses less digits than its factorization.

12726156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060520 (or 1060518 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 12726156 is about 3567.3738239775. The cubic root of 12726156 is about 233.4707154681.

Adding to 12726156 its reverse (65162721), we get a palindrome (77888877).

The spelling of 12726156 in words is "twelve million, seven hundred twenty-six thousand, one hundred fifty-six".