12198969 has 12 divisors (see below), whose sum is σ = 18548400. Its totient is φ = 7704504.

The previous prime is 12198961. The next prime is 12199001. The reversal of 12198969 is 96989121.

It is not a de Polignac number, because 12198969 - 2³ = 12198961 is a prime.

It is a super-2 number, since 2×12198969² = 297629689325922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12198961) 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 11 ways as a sum of consecutive naturals, for example, 35499 + ... + 35840.

It is an arithmetic number, because the mean of its divisors is an integer number (1545700).

Almost surely, 2^12198969 is an apocalyptic number.

12198969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12198969 is a deficient number, since it is larger than the sum of its proper divisors (6349431).

12198969 is a wasteful number, since it uses less digits than its factorization.

12198969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71364 (or 71361 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 12198969 is about 3492.7022489757. The cubic root of 12198969 is about 230.2012667996.

The spelling of 12198969 in words is "twelve million, one hundred ninety-eight thousand, nine hundred sixty-nine".