12771207 has 6 divisors (see below), whose sum is σ = 18447312. Its totient is φ = 8514132.

The previous prime is 12771193. The next prime is 12771221. The reversal of 12771207 is 70217721.

It is an interprime number because it is at equal distance from previous prime (12771193) and next prime (12771221).

It is not a de Polignac number, because 12771207 - 2⁴ = 12771191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12771007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 709503 + ... + 709520.

It is an arithmetic number, because the mean of its divisors is an integer number (3074552).

Almost surely, 2^12771207 is an apocalyptic number.

12771207 is a deficient number, since it is larger than the sum of its proper divisors (5676105).

12771207 is a wasteful number, since it uses less digits than its factorization.

12771207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419029 (or 1419026 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 12771207 is about 3573.6825544528. The cubic root of 12771207 is about 233.7458889532.

Adding to 12771207 its reverse (70217721), we get a palindrome (82988928).

The spelling of 12771207 in words is "twelve million, seven hundred seventy-one thousand, two hundred seven".