12756275 has 12 divisors (see below), whose sum is σ = 18077712. Its totient is φ = 8747040.

The previous prime is 12756253. The next prime is 12756311. The reversal of 12756275 is 57265721.

It is a happy number.

It is not a de Polignac number, because 12756275 - 2⁸ = 12756019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 36272 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (1506476).

Almost surely, 2^12756275 is an apocalyptic number.

12756275 is a deficient number, since it is larger than the sum of its proper divisors (5321437).

12756275 is an equidigital number, since it uses as much as digits as its factorization.

12756275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72910 (or 72905 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 12756275 is about 3571.5927819392. The cubic root of 12756275 is about 233.6547554429.

It can be divided in two parts, 12756 and 275, that added together give a palindrome (13031).

The spelling of 12756275 in words is "twelve million, seven hundred fifty-six thousand, two hundred seventy-five".