260544191 has 2 divisors, whose sum is σ = 260544192. Its totient is φ = 260544190.

The previous prime is 260544187. The next prime is 260544209. The reversal of 260544191 is 191445062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260544191 - 2² = 260544187 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260540191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130272095 + 130272096.

It is an arithmetic number, because the mean of its divisors is an integer number (130272096).

Almost surely, 2^260544191 is an apocalyptic number.

260544191 is a deficient number, since it is larger than the sum of its proper divisors (1).

260544191 is an equidigital number, since it uses as much as digits as its factorization.

260544191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 260544191 is about 16141.3813225511. The cubic root of 260544191 is about 638.6954146238.

The spelling of 260544191 in words is "two hundred sixty million, five hundred forty-four thousand, one hundred ninety-one".