12775 has 12 divisors (see below), whose sum is σ = 18352. Its totient is φ = 8640.

The previous prime is 12763. The next prime is 12781. The reversal of 12775 is 57721.

It is not a de Polignac number, because 12775 - 2⁵ = 12743 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139 + ... + 211.

2¹²⁷⁷⁵ is an apocalyptic number.

12775 is a deficient number, since it is larger than the sum of its proper divisors (5577).

12775 is an equidigital number, since it uses as much as digits as its factorization.

12775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 85 counting only the distinct ones).

The product of its digits is 490, while the sum is 22.

The square root of 12775 is about 113.0265455546. The cubic root of 12775 is about 23.3769027210.

It can be divided in two parts, 127 and 75, that added together give a palindrome (202).

The spelling of 12775 in words is "twelve thousand, seven hundred seventy-five".