12153309 has 8 divisors (see below), whose sum is σ = 18519360. Its totient is φ = 6944736.

The previous prime is 12153299. The next prime is 12153313. The reversal of 12153309 is 90335121.

It is a happy number.

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

It is not a de Polignac number, because 12153309 - 2⁹ = 12152797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153359) 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, 289344 + ... + 289385.

It is an arithmetic number, because the mean of its divisors is an integer number (2314920).

Almost surely, 2^12153309 is an apocalyptic number.

It is an amenable number.

12153309 is a deficient number, since it is larger than the sum of its proper divisors (6366051).

12153309 is an equidigital number, since it uses as much as digits as its factorization.

12153309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578739.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 12153309 is about 3486.1596348991. The cubic root of 12153309 is about 229.9136979300.

The spelling of 12153309 in words is "twelve million, one hundred fifty-three thousand, three hundred nine".