12012306 has 16 divisors (see below), whose sum is σ = 24058944. Its totient is φ = 3998384.

The previous prime is 12012289. The next prime is 12012331. The reversal of 12012306 is 60321021.

12012306 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6520 + ... + 8156.

It is an arithmetic number, because the mean of its divisors is an integer number (1503684).

Almost surely, 2^12012306 is an apocalyptic number.

12012306 is an abundant number, since it is smaller than the sum of its proper divisors (12046638).

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

12012306 is a wasteful number, since it uses less digits than its factorization.

12012306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12012306 is about 3465.8773780963. The cubic root of 12012306 is about 229.0210820710.

Adding to 12012306 its reverse (60321021), we get a palindrome (72333327).

The spelling of 12012306 in words is "twelve million, twelve thousand, three hundred six".