12090512 has 20 divisors (see below), whose sum is σ = 26772096. Its totient is φ = 5181600.

The previous prime is 12090503. The next prime is 12090539. The reversal of 12090512 is 21509021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53864 + ... + 54087.

Almost surely, 2^12090512 is an apocalyptic number.

It is an amenable number.

12090512 is an abundant number, since it is smaller than the sum of its proper divisors (14681584).

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

12090512 is a wasteful number, since it uses less digits than its factorization.

12090512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107966 (or 107960 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 12090512 is about 3477.1413546188. The cubic root of 12090512 is about 229.5170205226.

Adding to 12090512 its reverse (21509021), we get a palindrome (33599533).

The spelling of 12090512 in words is "twelve million, ninety thousand, five hundred twelve".