12975805 has 8 divisors (see below), whose sum is σ = 15759072. Its totient is φ = 10255248.

The previous prime is 12975797. The next prime is 12975821. The reversal of 12975805 is 50857921.

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 12975805 - 2³ = 12975797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15219 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (1969884).

Almost surely, 2^12975805 is an apocalyptic number.

It is an amenable number.

12975805 is a deficient number, since it is larger than the sum of its proper divisors (2783267).

12975805 is an equidigital number, since it uses as much as digits as its factorization.

12975805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31355.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 12975805 is about 3602.1944700418. The cubic root of 12975805 is about 234.9875049943.

The spelling of 12975805 in words is "twelve million, nine hundred seventy-five thousand, eight hundred five".