654040571 has 2 divisors, whose sum is σ = 654040572. Its totient is φ = 654040570.

The previous prime is 654040537. The next prime is 654040589. The reversal of 654040571 is 175040456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654040571 is a prime.

It is not a weakly prime, because it can be changed into another prime (654040531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327020285 + 327020286.

It is an arithmetic number, because the mean of its divisors is an integer number (327020286).

Almost surely, 2^654040571 is an apocalyptic number.

654040571 is a deficient number, since it is larger than the sum of its proper divisors (1).

654040571 is an equidigital number, since it uses as much as digits as its factorization.

654040571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 654040571 is about 25574.2169186077. The cubic root of 654040571 is about 868.0303222823.

The spelling of 654040571 in words is "six hundred fifty-four million, forty thousand, five hundred seventy-one".