2871159961 has 2 divisors, whose sum is σ = 2871159962. Its totient is φ = 2871159960.

The previous prime is 2871159947. The next prime is 2871160001. The reversal of 2871159961 is 1699511782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2772654336 + 98505625 = 52656^2 + 9925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2871159961 - 2⁷ = 2871159833 is a prime.

It is not a weakly prime, because it can be changed into another prime (2871159061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435579980 + 1435579981.

It is an arithmetic number, because the mean of its divisors is an integer number (1435579981).

Almost surely, 2^2871159961 is an apocalyptic number.

It is an amenable number.

2871159961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2871159961 is an equidigital number, since it uses as much as digits as its factorization.

2871159961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 49.

The square root of 2871159961 is about 53583.2059604500. The cubic root of 2871159961 is about 1421.3001319086.

The spelling of 2871159961 in words is "two billion, eight hundred seventy-one million, one hundred fifty-nine thousand, nine hundred sixty-one".