2857457171 has 2 divisors, whose sum is σ = 2857457172. Its totient is φ = 2857457170.

The previous prime is 2857457123. The next prime is 2857457173. The reversal of 2857457171 is 1717547582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2857457171 is a prime.

It is a super-2 number, since 2×2857457171² = 16330122968198646482, which contains 22 as substring.

Together with 2857457173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2857457173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428728585 + 1428728586.

It is an arithmetic number, because the mean of its divisors is an integer number (1428728586).

Almost surely, 2^2857457171 is an apocalyptic number.

2857457171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2857457171 is an equidigital number, since it uses as much as digits as its factorization.

2857457171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 548800, while the sum is 47.

The square root of 2857457171 is about 53455.1884385417. The cubic root of 2857457171 is about 1419.0354441132.

The spelling of 2857457171 in words is "two billion, eight hundred fifty-seven million, four hundred fifty-seven thousand, one hundred seventy-one".