2971271 has 2 divisors, whose sum is σ = 2971272. Its totient is φ = 2971270.

The previous prime is 2971261. The next prime is 2971273. The reversal of 2971271 is 1721792.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2971271 is a prime.

It is a Sophie Germain prime.

Together with 2971273, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₂₁₄₈₈₆ and since 2971271 and 214886 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2971273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1485635 + 1485636.

It is an arithmetic number, because the mean of its divisors is an integer number (1485636).

2^2971271 is an apocalyptic number.

2971271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2971271 is an equidigital number, since it uses as much as digits as its factorization.

2971271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 29.

The square root of 2971271 is about 1723.7375090193. The cubic root of 2971271 is about 143.7630974834.

The spelling of 2971271 in words is "two million, nine hundred seventy-one thousand, two hundred seventy-one".