12247506 has 12 divisors (see below), whose sum is σ = 26536302. Its totient is φ = 4082496.

The previous prime is 12247471. The next prime is 12247507. The reversal of 12247506 is 60574221.

It can be written as a sum of positive squares in only one way, i.e., 10400625 + 1846881 = 3225^2 + 1359^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12247506.

It is not an unprimeable number, because it can be changed into a prime (12247507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340191 + ... + 340226.

Almost surely, 2^12247506 is an apocalyptic number.

12247506 is an abundant number, since it is smaller than the sum of its proper divisors (14288796).

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

12247506 is a wasteful number, since it uses less digits than its factorization.

12247506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680425 (or 680422 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12247506 is about 3499.6436961497. The cubic root of 12247506 is about 230.5061694212.

The spelling of 12247506 in words is "twelve million, two hundred forty-seven thousand, five hundred six".