12667049 has 4 divisors (see below), whose sum is σ = 12692736. Its totient is φ = 12641364.

The previous prime is 12667037. The next prime is 12667051. The reversal of 12667049 is 94076621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12667049 - 2¹² = 12662953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12667019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12089 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (3173184).

Almost surely, 2^12667049 is an apocalyptic number.

It is an amenable number.

12667049 is a deficient number, since it is larger than the sum of its proper divisors (25687).

12667049 is an equidigital number, since it uses as much as digits as its factorization.

12667049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25686.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 12667049 is about 3559.0797968014. The cubic root of 12667049 is about 233.1087005929.

The spelling of 12667049 in words is "twelve million, six hundred sixty-seven thousand, forty-nine".