240571 has 2 divisors, whose sum is σ = 240572. Its totient is φ = 240570.

The previous prime is 240551. The next prime is 240587. The reversal of 240571 is 175042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240571 - 2⁹ = 240059 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (240551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120285 + 120286.

It is an arithmetic number, because the mean of its divisors is an integer number (120286).

2²⁴⁰⁵⁷¹ is an apocalyptic number.

240571 is a deficient number, since it is larger than the sum of its proper divisors (1).

240571 is an equidigital number, since it uses as much as digits as its factorization.

240571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 240571 is about 490.4803767736. The cubic root of 240571 is about 62.1938952456.

The spelling of 240571 in words is "two hundred forty thousand, five hundred seventy-one".