12198069 has 24 divisors (see below), whose sum is σ = 19138392. Its totient is φ = 7441920.

The previous prime is 12198059. The next prime is 12198071. The reversal of 12198069 is 96089121.

It can be written as a sum of positive squares in 4 ways, for example, as 191844 + 12006225 = 438^2 + 3465^2 .

It is not a de Polignac number, because 12198069 - 2⁵ = 12198037 is a prime.

It is a super-2 number, since 2×12198069² = 297585774657522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198029) 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 23 ways as a sum of consecutive naturals, for example, 15649 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (797433).

Almost surely, 2^12198069 is an apocalyptic number.

It is an amenable number.

12198069 is a deficient number, since it is larger than the sum of its proper divisors (6940323).

12198069 is a wasteful number, since it uses less digits than its factorization.

12198069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12198069 is about 3492.5734065299. The cubic root of 12198069 is about 230.1956054951.

The spelling of 12198069 in words is "twelve million, one hundred ninety-eight thousand, sixty-nine".