12418609 has 12 divisors (see below), whose sum is σ = 15207600. Its totient is φ = 10083528.

The previous prime is 12418579. The next prime is 12418633. The reversal of 12418609 is 90681421.

It is a happy number.

It is not a de Polignac number, because 12418609 - 2⁹ = 12418097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12418649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5739 + ... + 7600.

It is an arithmetic number, because the mean of its divisors is an integer number (1267300).

Almost surely, 2^12418609 is an apocalyptic number.

12418609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12418609 is a deficient number, since it is larger than the sum of its proper divisors (2788991).

12418609 is a wasteful number, since it uses less digits than its factorization.

12418609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13372 (or 13365 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12418609 is about 3524.0046821762. The cubic root of 12418609 is about 231.5746330309.

The spelling of 12418609 in words is "twelve million, four hundred eighteen thousand, six hundred nine".