12240609 has 8 divisors (see below), whose sum is σ = 16336992. Its totient is φ = 8152320.

The previous prime is 12240607. The next prime is 12240643. The reversal of 12240609 is 90604221.

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

It is not a de Polignac number, because 12240609 - 2¹ = 12240607 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12240601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4737 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (2042124).

Almost surely, 2^12240609 is an apocalyptic number.

It is an amenable number.

12240609 is a deficient number, since it is larger than the sum of its proper divisors (4096383).

12240609 is a wasteful number, since it uses less digits than its factorization.

12240609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12240609 is about 3498.6581713566. The cubic root of 12240609 is about 230.4628925950.

The spelling of 12240609 in words is "twelve million, two hundred forty thousand, six hundred nine".