12909049 has 8 divisors (see below), whose sum is σ = 13507200. Its totient is φ = 12314016.

The previous prime is 12909047. The next prime is 12909077. The reversal of 12909049 is 94090921.

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

It is not a de Polignac number, because 12909049 - 2¹ = 12909047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12909047) 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, 13309 + ... + 14245.

It is an arithmetic number, because the mean of its divisors is an integer number (1688400).

Almost surely, 2^12909049 is an apocalyptic number.

It is an amenable number.

12909049 is a deficient number, since it is larger than the sum of its proper divisors (598151).

12909049 is an equidigital number, since it uses as much as digits as its factorization.

12909049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 12909049 is about 3592.9165033438. The cubic root of 12909049 is about 234.5838356492.

The spelling of 12909049 in words is "twelve million, nine hundred nine thousand, forty-nine".