241660591 has 2 divisors, whose sum is σ = 241660592. Its totient is φ = 241660590.

The previous prime is 241660583. The next prime is 241660597. The reversal of 241660591 is 195066142.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 241660591 - 2³ = 241660583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241660597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120830295 + 120830296.

It is an arithmetic number, because the mean of its divisors is an integer number (120830296).

Almost surely, 2^241660591 is an apocalyptic number.

241660591 is a deficient number, since it is larger than the sum of its proper divisors (1).

241660591 is an equidigital number, since it uses as much as digits as its factorization.

241660591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 241660591 is about 15545.4363399681. The cubic root of 241660591 is about 622.8764976716.

The spelling of 241660591 in words is "two hundred forty-one million, six hundred sixty thousand, five hundred ninety-one".