2045340317 has 2 divisors, whose sum is σ = 2045340318. Its totient is φ = 2045340316.

The previous prime is 2045340263. The next prime is 2045340347. The reversal of 2045340317 is 7130435402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1358585881 + 686754436 = 36859^2 + 26206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045340317 - 2¹⁰ = 2045339293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2045340317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045340347) 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, 1022670158 + 1022670159.

It is an arithmetic number, because the mean of its divisors is an integer number (1022670159).

Almost surely, 2^2045340317 is an apocalyptic number.

It is an amenable number.

2045340317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045340317 is an equidigital number, since it uses as much as digits as its factorization.

2045340317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 2045340317 is about 45225.4388259528. The cubic root of 2045340317 is about 1269.3708659794.

Adding to 2045340317 its reverse (7130435402), we get a palindrome (9175775719).

The spelling of 2045340317 in words is "two billion, forty-five million, three hundred forty thousand, three hundred seventeen".