2641571 has 2 divisors, whose sum is σ = 2641572. Its totient is φ = 2641570.

The previous prime is 2641567. The next prime is 2641577. The reversal of 2641571 is 1751462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2641571 - 2² = 2641567 is a prime.

It is a Sophie Germain prime.

It is equal to p₁₉₂₆₈₀ and since 2641571 and 192680 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2641571.

It is not a weakly prime, because it can be changed into another prime (2641577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320785 + 1320786.

It is an arithmetic number, because the mean of its divisors is an integer number (1320786).

2^2641571 is an apocalyptic number.

2641571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641571 is an equidigital number, since it uses as much as digits as its factorization.

2641571 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 2641571 is about 1625.2910508583. The cubic root of 2641571 is about 138.2358739996.

The spelling of 2641571 in words is "two million, six hundred forty-one thousand, five hundred seventy-one".