12045506 has 16 divisors (see below), whose sum is σ = 20748960. Its totient is φ = 5186880.

The previous prime is 12045497. The next prime is 12045521. The reversal of 12045506 is 60554021.

It is a Curzon number.

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, 13991 + ... + 14826.

It is an arithmetic number, because the mean of its divisors is an integer number (1296810).

Almost surely, 2^12045506 is an apocalyptic number.

12045506 is a deficient number, since it is larger than the sum of its proper divisors (8703454).

12045506 is a wasteful number, since it uses less digits than its factorization.

12045506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28849.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 12045506 is about 3470.6636253028. The cubic root of 12045506 is about 229.2318799457.

Adding to 12045506 its reverse (60554021), we get a palindrome (72599527).

The spelling of 12045506 in words is "twelve million, forty-five thousand, five hundred six".