2045303257 has 2 divisors, whose sum is σ = 2045303258. Its totient is φ = 2045303256.

The previous prime is 2045303243. The next prime is 2045303287. The reversal of 2045303257 is 7523035402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2043401616 + 1901641 = 45204^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045303257 - 2¹⁵ = 2045270489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045303207) 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, 1022651628 + 1022651629.

It is an arithmetic number, because the mean of its divisors is an integer number (1022651629).

Almost surely, 2^2045303257 is an apocalyptic number.

It is an amenable number.

2045303257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045303257 is an equidigital number, since it uses as much as digits as its factorization.

2045303257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 2045303257 is about 45225.0290989403. The cubic root of 2045303257 is about 1269.3631992571.

Adding to 2045303257 its reverse (7523035402), we get a palindrome (9568338659).

The spelling of 2045303257 in words is "two billion, forty-five million, three hundred three thousand, two hundred fifty-seven".