12969305 has 8 divisors (see below), whose sum is σ = 16382400. Its totient is φ = 9829296.

The previous prime is 12969301. The next prime is 12969311. The reversal of 12969305 is 50396921.

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 12969305 - 2² = 12969301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12969301) 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 7 ways as a sum of consecutive naturals, for example, 68165 + ... + 68354.

It is an arithmetic number, because the mean of its divisors is an integer number (2047800).

Almost surely, 2^12969305 is an apocalyptic number.

It is an amenable number.

12969305 is a deficient number, since it is larger than the sum of its proper divisors (3413095).

12969305 is a wasteful number, since it uses less digits than its factorization.

12969305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136543.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 12969305 is about 3601.2921292225. The cubic root of 12969305 is about 234.9482608293.

It can be divided in two parts, 1296 and 9305, that added together give a palindrome (10601).

The spelling of 12969305 in words is "twelve million, nine hundred sixty-nine thousand, three hundred five".