12198267 has 6 divisors (see below), whose sum is σ = 17619732. Its totient is φ = 8132172.

The previous prime is 12198259. The next prime is 12198269. The reversal of 12198267 is 76289121.

It is not a de Polignac number, because 12198267 - 2³ = 12198259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12198269) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 677673 + ... + 677690.

It is an arithmetic number, because the mean of its divisors is an integer number (2936622).

Almost surely, 2^12198267 is an apocalyptic number.

12198267 is a deficient number, since it is larger than the sum of its proper divisors (5421465).

12198267 is a wasteful number, since it uses less digits than its factorization.

12198267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355369 (or 1355366 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 12198267 is about 3492.6017522758. The cubic root of 12198267 is about 230.1968510060.

The spelling of 12198267 in words is "twelve million, one hundred ninety-eight thousand, two hundred sixty-seven".