12045512 has 16 divisors (see below), whose sum is σ = 22628400. Its totient is φ = 6011280.

The previous prime is 12045497. The next prime is 12045521. The reversal of 12045512 is 21554021.

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 3 ways as a sum of consecutive naturals, for example, 4439 + ... + 6617.

It is an arithmetic number, because the mean of its divisors is an integer number (1414275).

Almost surely, 2^12045512 is an apocalyptic number.

It is an amenable number.

12045512 is a deficient number, since it is larger than the sum of its proper divisors (10582888).

12045512 is a wasteful number, since it uses less digits than its factorization.

12045512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2872 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12045512 is about 3470.6644896907. The cubic root of 12045512 is about 229.2319180067.

Adding to 12045512 its reverse (21554021), we get a palindrome (33599533).

The spelling of 12045512 in words is "twelve million, forty-five thousand, five hundred twelve".