2540771 has 2 divisors, whose sum is σ = 2540772. Its totient is φ = 2540770.

The previous prime is 2540761. The next prime is 2540789. The reversal of 2540771 is 1770452.

2540771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2540771 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2540771.

It is not a weakly prime, because it can be changed into another prime (2540761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270385 + 1270386.

It is an arithmetic number, because the mean of its divisors is an integer number (1270386).

2^2540771 is an apocalyptic number.

2540771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540771 is an equidigital number, since it uses as much as digits as its factorization.

2540771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 2540771 is about 1593.9796109110. The cubic root of 2540771 is about 136.4547028202.

The spelling of 2540771 in words is "two million, five hundred forty thousand, seven hundred seventy-one".