12295209 has 4 divisors (see below), whose sum is σ = 16393616. Its totient is φ = 8196804.

The previous prime is 12295201. The next prime is 12295219. The reversal of 12295209 is 90259221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12295209 - 2³ = 12295201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12295201) 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 3 ways as a sum of consecutive naturals, for example, 2049199 + ... + 2049204.

It is an arithmetic number, because the mean of its divisors is an integer number (4098404).

Almost surely, 2^12295209 is an apocalyptic number.

It is an amenable number.

12295209 is a deficient number, since it is larger than the sum of its proper divisors (4098407).

12295209 is an equidigital number, since it uses as much as digits as its factorization.

12295209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098406.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12295209 is about 3506.4524807845. The cubic root of 12295209 is about 230.8050490642.

The spelling of 12295209 in words is "twelve million, two hundred ninety-five thousand, two hundred nine".