2054315191 has 2 divisors, whose sum is σ = 2054315192. Its totient is φ = 2054315190.

The previous prime is 2054315183. The next prime is 2054315227. The reversal of 2054315191 is 1915134502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2054315191 - 2³ = 2054315183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054315141) 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, 1027157595 + 1027157596.

It is an arithmetic number, because the mean of its divisors is an integer number (1027157596).

Almost surely, 2^2054315191 is an apocalyptic number.

2054315191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054315191 is an equidigital number, since it uses as much as digits as its factorization.

2054315191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 2054315191 is about 45324.5539525763. The cubic root of 2054315191 is about 1271.2248069901.

Adding to 2054315191 its reverse (1915134502), we get a palindrome (3969449693).

The spelling of 2054315191 in words is "two billion, fifty-four million, three hundred fifteen thousand, one hundred ninety-one".