2196548591 has 2 divisors, whose sum is σ = 2196548592. Its totient is φ = 2196548590.

The previous prime is 2196548581. The next prime is 2196548659. The reversal of 2196548591 is 1958456912.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2196548591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2196548581) 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, 1098274295 + 1098274296.

It is an arithmetic number, because the mean of its divisors is an integer number (1098274296).

Almost surely, 2^2196548591 is an apocalyptic number.

2196548591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196548591 is an equidigital number, since it uses as much as digits as its factorization.

2196548591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 50.

The square root of 2196548591 is about 46867.3510132587. The cubic root of 2196548591 is about 1299.9109585957.

The spelling of 2196548591 in words is "two billion, one hundred ninety-six million, five hundred forty-eight thousand, five hundred ninety-one".