2045200217 has 2 divisors, whose sum is σ = 2045200218. Its totient is φ = 2045200216.

The previous prime is 2045200211. The next prime is 2045200237. The reversal of 2045200217 is 7120025402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1972336921 + 72863296 = 44411^2 + 8536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045200217 - 2¹⁰ = 2045199193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045200192 and 2045200201.

It is not a weakly prime, because it can be changed into another prime (2045200211) 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, 1022600108 + 1022600109.

It is an arithmetic number, because the mean of its divisors is an integer number (1022600109).

Almost surely, 2^2045200217 is an apocalyptic number.

It is an amenable number.

2045200217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045200217 is an equidigital number, since it uses as much as digits as its factorization.

2045200217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 2045200217 is about 45223.8898924009. The cubic root of 2045200217 is about 1269.3418825518.

Adding to 2045200217 its reverse (7120025402), we get a palindrome (9165225619).

The spelling of 2045200217 in words is "two billion, forty-five million, two hundred thousand, two hundred seventeen".