12280971 has 8 divisors (see below), whose sum is σ = 16402320. Its totient is φ = 8173472.

The previous prime is 12280969. The next prime is 12280979. The reversal of 12280971 is 17908221.

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 12280971 - 2¹ = 12280969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12280979) 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, 1176 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (2050290).

Almost surely, 2^12280971 is an apocalyptic number.

12280971 is a deficient number, since it is larger than the sum of its proper divisors (4121349).

12280971 is an equidigital number, since it uses as much as digits as its factorization.

12280971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 12280971 is about 3504.4216355912. The cubic root of 12280971 is about 230.7159229774.

The spelling of 12280971 in words is "twelve million, two hundred eighty thousand, nine hundred seventy-one".