2564171 has 2 divisors, whose sum is σ = 2564172. Its totient is φ = 2564170.

The previous prime is 2564147. The next prime is 2564203. The reversal of 2564171 is 1714652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564171 - 2¹⁰ = 2563147 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2564171.

It is not a weakly prime, because it can be changed into another prime (2564101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282085 + 1282086.

It is an arithmetic number, because the mean of its divisors is an integer number (1282086).

2^2564171 is an apocalyptic number.

2564171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564171 is an equidigital number, since it uses as much as digits as its factorization.

2564171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 2564171 is about 1601.3029070104. The cubic root of 2564171 is about 136.8723303136.

The spelling of 2564171 in words is "two million, five hundred sixty-four thousand, one hundred seventy-one".