12771051 has 4 divisors (see below), whose sum is σ = 17028072. Its totient is φ = 8514032.

The previous prime is 12771047. The next prime is 12771053. The reversal of 12771051 is 15017721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15017721 = 3 ⋅5005907.

It is a cyclic number.

It is not a de Polignac number, because 12771051 - 2² = 12771047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12771053) 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, 2128506 + ... + 2128511.

It is an arithmetic number, because the mean of its divisors is an integer number (4257018).

Almost surely, 2^12771051 is an apocalyptic number.

12771051 is a deficient number, since it is larger than the sum of its proper divisors (4257021).

12771051 is an equidigital number, since it uses as much as digits as its factorization.

12771051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257020.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 12771051 is about 3573.6607281610. The cubic root of 12771051 is about 233.7449372158.

Adding to 12771051 its reverse (15017721), we get a palindrome (27788772).

The spelling of 12771051 in words is "twelve million, seven hundred seventy-one thousand, fifty-one".