2943442081 has 2 divisors, whose sum is σ = 2943442082. Its totient is φ = 2943442080.

The previous prime is 2943442027. The next prime is 2943442097. The reversal of 2943442081 is 1802443492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2283979681 + 659462400 = 47791^2 + 25680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2943442081 - 2⁷ = 2943441953 is a prime.

It is a super-3 number, since 3×2943442081³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2943442081.

It is not a weakly prime, because it can be changed into another prime (2943442001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471721040 + 1471721041.

It is an arithmetic number, because the mean of its divisors is an integer number (1471721041).

Almost surely, 2^2943442081 is an apocalyptic number.

It is an amenable number.

2943442081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2943442081 is an equidigital number, since it uses as much as digits as its factorization.

2943442081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 2943442081 is about 54253.4983296008. The cubic root of 2943442081 is about 1433.1286059798.

The spelling of 2943442081 in words is "two billion, nine hundred forty-three million, four hundred forty-two thousand, eighty-one".