12802271 has 4 divisors (see below), whose sum is σ = 12812112. Its totient is φ = 12792432.

The previous prime is 12802243. The next prime is 12802289. The reversal of 12802271 is 17220821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12802271 - 2¹⁰ = 12801247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12802201) 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, 2606 + ... + 5691.

It is an arithmetic number, because the mean of its divisors is an integer number (3203028).

Almost surely, 2^12802271 is an apocalyptic number.

12802271 is a deficient number, since it is larger than the sum of its proper divisors (9841).

12802271 is an equidigital number, since it uses as much as digits as its factorization.

12802271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 12802271 is about 3578.0261318218. The cubic root of 12802271 is about 233.9352524979.

The spelling of 12802271 in words is "twelve million, eight hundred two thousand, two hundred seventy-one".