12132005 has 16 divisors (see below), whose sum is σ = 15552000. Its totient is φ = 9065280.

The previous prime is 12131963. The next prime is 12132011. The reversal of 12132005 is 50023121.

It is a happy number.

It is not a de Polignac number, because 12132005 - 2¹⁰ = 12130981 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 3146 + ... + 5844.

It is an arithmetic number, because the mean of its divisors is an integer number (972000).

Almost surely, 2^12132005 is an apocalyptic number.

It is an amenable number.

12132005 is a deficient number, since it is larger than the sum of its proper divisors (3419995).

12132005 is a wasteful number, since it uses less digits than its factorization.

12132005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12132005 is about 3483.1027834389. The cubic root of 12132005 is about 229.7792778522.

Adding to 12132005 its reverse (50023121), we get a palindrome (62155126).

The spelling of 12132005 in words is "twelve million, one hundred thirty-two thousand, five".