2771081 has 2 divisors, whose sum is σ = 2771082. Its totient is φ = 2771080.

The previous prime is 2771057. The next prime is 2771113. The reversal of 2771081 is 1801772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1915456 + 855625 = 1384^2 + 925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2771081 is a prime.

It is a super-2 number, since 2×2771081² = 15357779817122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2771081.

It is not a weakly prime, because it can be changed into another prime (2771011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385540 + 1385541.

It is an arithmetic number, because the mean of its divisors is an integer number (1385541).

2^2771081 is an apocalyptic number.

It is an amenable number.

2771081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771081 is an equidigital number, since it uses as much as digits as its factorization.

2771081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 2771081 is about 1664.6564210070. The cubic root of 2771081 is about 140.4590543586.

The spelling of 2771081 in words is "two million, seven hundred seventy-one thousand, eighty-one".