12045005 has 16 divisors (see below), whose sum is σ = 17089920. Its totient is φ = 7973952.

The previous prime is 12045001. The next prime is 12045023. The reversal of 12045005 is 50054021.

It is not a de Polignac number, because 12045005 - 2² = 12045001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4919 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (1068120).

Almost surely, 2^12045005 is an apocalyptic number.

It is an amenable number.

12045005 is a deficient number, since it is larger than the sum of its proper divisors (5044915).

12045005 is a wasteful number, since it uses less digits than its factorization.

12045005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11908.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 12045005 is about 3470.5914481540. The cubic root of 12045005 is about 229.2287018099.

Adding to 12045005 its reverse (50054021), we get a palindrome (62099026).

The spelling of 12045005 in words is "twelve million, forty-five thousand, five".