12168522 has 16 divisors (see below), whose sum is σ = 27041280. Its totient is φ = 4056156.

The previous prime is 12168517. The next prime is 12168551. The reversal of 12168522 is 22586121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 112618 + ... + 112725.

It is an arithmetic number, because the mean of its divisors is an integer number (1690080).

Almost surely, 2^12168522 is an apocalyptic number.

12168522 is an abundant number, since it is smaller than the sum of its proper divisors (14872758).

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

12168522 is a wasteful number, since it uses less digits than its factorization.

12168522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225354 (or 225348 counting only the distinct ones).

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

The square root of 12168522 is about 3488.3408663719. The cubic root of 12168522 is about 230.0095900223.

The spelling of 12168522 in words is "twelve million, one hundred sixty-eight thousand, five hundred twenty-two".