12667005 has 48 divisors (see below), whose sum is σ = 24111360. Its totient is φ = 6113664.

The previous prime is 12667001. The next prime is 12667013. The reversal of 12667005 is 50076621.

It is not a de Polignac number, because 12667005 - 2² = 12667001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12667005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12667001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34332 + ... + 34698.

It is an arithmetic number, because the mean of its divisors is an integer number (502320).

Almost surely, 2^12667005 is an apocalyptic number.

12667005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12667005 is a deficient number, since it is larger than the sum of its proper divisors (11444355).

12667005 is a wasteful number, since it uses less digits than its factorization.

12667005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 12667005 is about 3559.0736154230. The cubic root of 12667005 is about 233.1084306854.

The spelling of 12667005 in words is "twelve million, six hundred sixty-seven thousand, five".