12229309 has 8 divisors (see below), whose sum is σ = 12471200. Its totient is φ = 11989296.

The previous prime is 12229289. The next prime is 12229313. The reversal of 12229309 is 90392221.

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 12229309 - 2¹³ = 12221117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229319) 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, 23122 + ... + 23644.

It is an arithmetic number, because the mean of its divisors is an integer number (1558900).

Almost surely, 2^12229309 is an apocalyptic number.

It is an amenable number.

12229309 is a deficient number, since it is larger than the sum of its proper divisors (241891).

12229309 is an equidigital number, since it uses as much as digits as its factorization.

12229309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12229309 is about 3497.0428936460. The cubic root of 12229309 is about 230.3919529746.

The spelling of 12229309 in words is "twelve million, two hundred twenty-nine thousand, three hundred nine".