12170648 has 16 divisors (see below), whose sum is σ = 26080080. Its totient is φ = 5215968.

The previous prime is 12170647. The next prime is 12170651. The reversal of 12170648 is 84607121.

It is a self number, because there is not a number n which added to its sum of digits gives 12170648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170647) 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 3 ways as a sum of consecutive naturals, for example, 108611 + ... + 108722.

It is an arithmetic number, because the mean of its divisors is an integer number (1630005).

Almost surely, 2^12170648 is an apocalyptic number.

It is an amenable number.

12170648 is an abundant number, since it is smaller than the sum of its proper divisors (13909432).

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

12170648 is a wasteful number, since it uses less digits than its factorization.

12170648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217346 (or 217342 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 12170648 is about 3488.6455824575. The cubic root of 12170648 is about 230.0229844705.

Adding to 12170648 its reverse (84607121), we get a palindrome (96777769).

The spelling of 12170648 in words is "twelve million, one hundred seventy thousand, six hundred forty-eight".