12849 has 4 divisors (see below), whose sum is σ = 17136. Its totient is φ = 8564.

The previous prime is 12841. The next prime is 12853. The reversal of 12849 is 94821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94821 = 3 ⋅31607.

It is a cyclic number.

It is not a de Polignac number, because 12849 - 2³ = 12841 is a prime.

It is a D-number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (12841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (4284).

2¹²⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

12849 is a deficient number, since it is larger than the sum of its proper divisors (4287).

12849 is an equidigital number, since it uses as much as digits as its factorization.

12849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286.

The product of its digits is 576, while the sum is 24.

The square root of 12849 is about 113.3534295908. The cubic root of 12849 is about 23.4219532452.

It can be divided in two parts, 12 and 849, that added together give a triangular number (861 = T₄₁).

The spelling of 12849 in words is "twelve thousand, eight hundred forty-nine".