12285518 has 16 divisors (see below), whose sum is σ = 21510144. Its totient is φ = 5152920.

The previous prime is 12285503. The next prime is 12285521. The reversal of 12285518 is 81558221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8678 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (1344384).

Almost surely, 2^12285518 is an apocalyptic number.

12285518 is a deficient number, since it is larger than the sum of its proper divisors (9224626).

12285518 is a wasteful number, since it uses less digits than its factorization.

12285518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18727.

The product of its digits is 6400, while the sum is 32.

The square root of 12285518 is about 3505.0703273972. The cubic root of 12285518 is about 230.7443934693.

The spelling of 12285518 in words is "twelve million, two hundred eighty-five thousand, five hundred eighteen".