12953409 has 8 divisors (see below), whose sum is σ = 19738560. Its totient is φ = 7401936.

The previous prime is 12953407. The next prime is 12953419. The reversal of 12953409 is 90435921.

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

It is not a de Polignac number, because 12953409 - 2¹ = 12953407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12953409.

It is not an unprimeable number, because it can be changed into a prime (12953407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308394 + ... + 308435.

It is an arithmetic number, because the mean of its divisors is an integer number (2467320).

Almost surely, 2^12953409 is an apocalyptic number.

It is an amenable number.

12953409 is a deficient number, since it is larger than the sum of its proper divisors (6785151).

12953409 is an equidigital number, since it uses as much as digits as its factorization.

12953409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616839.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 12953409 is about 3599.0844669166. The cubic root of 12953409 is about 234.8522324393.

The spelling of 12953409 in words is "twelve million, nine hundred fifty-three thousand, four hundred nine".