12255609 has 8 divisors (see below), whose sum is σ = 16460640. Its totient is φ = 8110496.

The previous prime is 12255599. The next prime is 12255631. The reversal of 12255609 is 90655221.

It is a happy number.

12255609 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 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 12255609 - 2¹⁵ = 12222841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12255409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14499 + ... + 15320.

It is an arithmetic number, because the mean of its divisors is an integer number (2057580).

Almost surely, 2^12255609 is an apocalyptic number.

It is an amenable number.

12255609 is a deficient number, since it is larger than the sum of its proper divisors (4205031).

12255609 is a wasteful number, since it uses less digits than its factorization.

12255609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29959.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 12255609 is about 3500.8011940126. The cubic root of 12255609 is about 230.5569928223.

The spelling of 12255609 in words is "twelve million, two hundred fifty-five thousand, six hundred nine".