12051648 has 168 divisors, whose sum is σ = 40944800. Its totient is φ = 3386880.

The previous prime is 12051647. The next prime is 12051649. The reversal of 12051648 is 84615021.

12051648 is a `hidden beast` number, since 12 + 0 + 5 + 1 + 648 = 666.

12051648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12051647) and next prime (12051649).

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (12051647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197538 + ... + 197598.

Almost surely, 2^12051648 is an apocalyptic number.

12051648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12051648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20472400).

12051648 is an abundant number, since it is smaller than the sum of its proper divisors (28893152).

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

12051648 is an equidigital number, since it uses as much as digits as its factorization.

12051648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12051648 is about 3471.5483577217. The cubic root of 12051648 is about 229.2708350817.

Adding to 12051648 its reverse (84615021), we get a palindrome (96666669).

The spelling of 12051648 in words is "twelve million, fifty-one thousand, six hundred forty-eight".