12198279 has 8 divisors (see below), whose sum is σ = 16661232. Its totient is φ = 7933760.

The previous prime is 12198269. The next prime is 12198281. The reversal of 12198279 is 97289121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12198279 - 2⁸ = 12198023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198229) 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 7 ways as a sum of consecutive naturals, for example, 49464 + ... + 49709.

It is an arithmetic number, because the mean of its divisors is an integer number (2082654).

Almost surely, 2^12198279 is an apocalyptic number.

12198279 is a deficient number, since it is larger than the sum of its proper divisors (4462953).

12198279 is an equidigital number, since it uses as much as digits as its factorization.

12198279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99217.

The product of its digits is 18144, while the sum is 39.

The square root of 12198279 is about 3492.6034701924. The cubic root of 12198279 is about 230.1969264911.

The spelling of 12198279 in words is "twelve million, one hundred ninety-eight thousand, two hundred seventy-nine".