2045170273 has 2 divisors, whose sum is σ = 2045170274. Its totient is φ = 2045170272.

The previous prime is 2045170199. The next prime is 2045170313. The reversal of 2045170273 is 3720715402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2033288464 + 11881809 = 45092^2 + 3447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045170273 - 2²⁹ = 1508299361 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045870273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022585136 + 1022585137.

It is an arithmetic number, because the mean of its divisors is an integer number (1022585137).

Almost surely, 2^2045170273 is an apocalyptic number.

It is an amenable number.

2045170273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045170273 is an equidigital number, since it uses as much as digits as its factorization.

2045170273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 2045170273 is about 45223.5588272307. The cubic root of 2045170273 is about 1269.3356876638.

Adding to 2045170273 its reverse (3720715402), we get a palindrome (5765885675).

The spelling of 2045170273 in words is "two billion, forty-five million, one hundred seventy thousand, two hundred seventy-three".