12971275 has 18 divisors (see below), whose sum is σ = 16574460. Its totient is φ = 10069920.

The previous prime is 12971263. The next prime is 12971279. The reversal of 12971275 is 57217921.

It is not a de Polignac number, because 12971275 - 2¹⁵ = 12938507 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12971275.

It is not an unprimeable number, because it can be changed into a prime (12971279) 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 17 ways as a sum of consecutive naturals, for example, 34036 + ... + 34414.

Almost surely, 2^12971275 is an apocalyptic number.

12971275 is a deficient number, since it is larger than the sum of its proper divisors (3603185).

12971275 is an equidigital number, since it uses as much as digits as its factorization.

12971275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 421 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The square root of 12971275 is about 3601.5656317774. The cubic root of 12971275 is about 234.9601562146.

The spelling of 12971275 in words is "twelve million, nine hundred seventy-one thousand, two hundred seventy-five".