12133648 has 40 divisors (see below), whose sum is σ = 25712640. Its totient is φ = 5521920.

The previous prime is 12133643. The next prime is 12133651. The reversal of 12133648 is 84633121.

It is not an unprimeable number, because it can be changed into a prime (12133643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7713 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (642816).

Almost surely, 2^12133648 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 12133648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12856320).

12133648 is an abundant number, since it is smaller than the sum of its proper divisors (13578992).

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

12133648 is a wasteful number, since it uses less digits than its factorization.

12133648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1489 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 12133648 is about 3483.3386283851. The cubic root of 12133648 is about 229.7896501502.

Adding to 12133648 its reverse (84633121), we get a palindrome (96766769).

The spelling of 12133648 in words is "twelve million, one hundred thirty-three thousand, six hundred forty-eight".