2146871717 has 2 divisors, whose sum is σ = 2146871718. Its totient is φ = 2146871716.

The previous prime is 2146871663. The next prime is 2146871719. The reversal of 2146871717 is 7171786412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1684363681 + 462508036 = 41041^2 + 21506^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146871717 - 2²² = 2142677413 is a prime.

Together with 2146871719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146871719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073435858 + 1073435859.

It is an arithmetic number, because the mean of its divisors is an integer number (1073435859).

Almost surely, 2^2146871717 is an apocalyptic number.

It is an amenable number.

2146871717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146871717 is an equidigital number, since it uses as much as digits as its factorization.

2146871717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 44.

The square root of 2146871717 is about 46334.3470548577. The cubic root of 2146871717 is about 1290.0365987253.

The spelling of 2146871717 in words is "two billion, one hundred forty-six million, eight hundred seventy-one thousand, seven hundred seventeen".