12156648 has 48 divisors (see below), whose sum is σ = 34862880. Its totient is φ = 3460416.

The previous prime is 12156643. The next prime is 12156671. The reversal of 12156648 is 84665121.

It is not an unprimeable number, because it can be changed into a prime (12156643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45058 + ... + 45326.

It is an arithmetic number, because the mean of its divisors is an integer number (726310).

Almost surely, 2^12156648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12156648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17431440).

12156648 is an abundant number, since it is smaller than the sum of its proper divisors (22706232).

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

12156648 is an equidigital number, since it uses as much as digits as its factorization.

12156648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 281 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 12156648 is about 3486.6384957434. The cubic root of 12156648 is about 229.9347514978.

The spelling of 12156648 in words is "twelve million, one hundred fifty-six thousand, six hundred forty-eight".