12667099 has 4 divisors (see below), whose sum is σ = 12675736. Its totient is φ = 12658464.

The previous prime is 12667093. The next prime is 12667121. The reversal of 12667099 is 99076621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12667099 - 2⁹ = 12666587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12667093) 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 3 ways as a sum of consecutive naturals, for example, 1509 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (3168934).

Almost surely, 2^12667099 is an apocalyptic number.

12667099 is a deficient number, since it is larger than the sum of its proper divisors (8637).

12667099 is an equidigital number, since it uses as much as digits as its factorization.

12667099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 12667099 is about 3559.0868210821. The cubic root of 12667099 is about 233.1090073052.

The spelling of 12667099 in words is "twelve million, six hundred sixty-seven thousand, ninety-nine".