12009512 has 16 divisors (see below), whose sum is σ = 22614900. Its totient is φ = 5978880.

The previous prime is 12009499. The next prime is 12009521. The reversal of 12009512 is 21590021.

It can be written as a sum of positive squares in 2 ways, for example, as 11792356 + 217156 = 3434^2 + 466^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187 + ... + 5042.

Almost surely, 2^12009512 is an apocalyptic number.

It is an amenable number.

12009512 is a deficient number, since it is larger than the sum of its proper divisors (10605388).

12009512 is a wasteful number, since it uses less digits than its factorization.

12009512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476 (or 6472 counting only the distinct ones).

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

The square root of 12009512 is about 3465.4742821149. The cubic root of 12009512 is about 229.0033243226.

Adding to 12009512 its reverse (21590021), we get a palindrome (33599533).

It can be divided in two parts, 12009 and 512, that added together give a palindrome (12521).

The spelling of 12009512 in words is "twelve million, nine thousand, five hundred twelve".