12267609 has 24 divisors (see below), whose sum is σ = 17559360. Its totient is φ = 7608384.

The previous prime is 12267587. The next prime is 12267641. The reversal of 12267609 is 90676221.

12267609 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12267609 - 2¹² = 12263513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12267609.

It is not an unprimeable number, because it can be changed into a prime (12267209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119052 + ... + 119154.

It is an arithmetic number, because the mean of its divisors is an integer number (731640).

Almost surely, 2^12267609 is an apocalyptic number.

It is an amenable number.

12267609 is a deficient number, since it is larger than the sum of its proper divisors (5291751).

12267609 is a wasteful number, since it uses less digits than its factorization.

12267609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12267609 is about 3502.5146680635. The cubic root of 12267609 is about 230.6322177367.

The spelling of 12267609 in words is "twelve million, two hundred sixty-seven thousand, six hundred nine".