12279 has 4 divisors (see below), whose sum is σ = 16376. Its totient is φ = 8184.

The previous prime is 12277. The next prime is 12281. The reversal of 12279 is 97221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12277) and next prime (12281).

It is not a de Polignac number, because 12279 - 2¹ = 12277 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277) 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, 2044 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (4094).

2¹²²⁷⁹ is an apocalyptic number.

12279 is a deficient number, since it is larger than the sum of its proper divisors (4097).

12279 is an equidigital number, since it uses as much as digits as its factorization.

12279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096.

The product of its digits is 252, while the sum is 21.

The square root of 12279 is about 110.8106493077. The cubic root of 12279 is about 23.0703579615.

The spelling of 12279 in words is "twelve thousand, two hundred seventy-nine".