2881061 has 2 divisors, whose sum is σ = 2881062. Its totient is φ = 2881060.

The previous prime is 2881057. The next prime is 2881097. The reversal of 2881061 is 1601882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2660161 + 220900 = 1631^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 2881061 - 2² = 2881057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2881061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2881031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440530 + 1440531.

It is an arithmetic number, because the mean of its divisors is an integer number (1440531).

2^2881061 is an apocalyptic number.

It is an amenable number.

2881061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2881061 is an equidigital number, since it uses as much as digits as its factorization.

2881061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 2881061 is about 1697.3688461852. The cubic root of 2881061 is about 142.2932016262.

The spelling of 2881061 in words is "two million, eight hundred eighty-one thousand, sixty-one".