2112571 has 2 divisors, whose sum is σ = 2112572. Its totient is φ = 2112570.

The previous prime is 2112569. The next prime is 2112581. The reversal of 2112571 is 1752112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112571 - 2¹ = 2112569 is a prime.

Together with 2112569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2112511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056285 + 1056286.

It is an arithmetic number, because the mean of its divisors is an integer number (1056286).

2^2112571 is an apocalyptic number.

2112571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112571 is an equidigital number, since it uses as much as digits as its factorization.

2112571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 140, while the sum is 19.

The square root of 2112571 is about 1453.4686099122. The cubic root of 2112571 is about 128.3129346712.

Adding to 2112571 its reverse (1752112), we get a palindrome (3864683).

The spelling of 2112571 in words is "two million, one hundred twelve thousand, five hundred seventy-one".