2164571 has 2 divisors, whose sum is σ = 2164572. Its totient is φ = 2164570.

The previous prime is 2164529. The next prime is 2164583. The reversal of 2164571 is 1754612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164571 - 2¹⁰ = 2163547 is a prime.

It is a super-2 number, since 2×2164571² = 9370735228082, which contains 22 as substring.

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 2164571.

It is not a weakly prime, because it can be changed into another prime (2164501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082285 + 1082286.

It is an arithmetic number, because the mean of its divisors is an integer number (1082286).

2^2164571 is an apocalyptic number.

2164571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164571 is an equidigital number, since it uses as much as digits as its factorization.

2164571 is an evil number, because the sum of its binary digits is even.

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

The square root of 2164571 is about 1471.2481095995. The cubic root of 2164571 is about 129.3572016092.

The spelling of 2164571 in words is "two million, one hundred sixty-four thousand, five hundred seventy-one".