1745412217 has 2 divisors, whose sum is σ = 1745412218. Its totient is φ = 1745412216.

The previous prime is 1745412203. The next prime is 1745412239. The reversal of 1745412217 is 7122145471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1705772601 + 39639616 = 41301^2 + 6296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745412217 - 2⁷ = 1745412089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1745412917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872706108 + 872706109.

It is an arithmetic number, because the mean of its divisors is an integer number (872706109).

Almost surely, 2^1745412217 is an apocalyptic number.

It is an amenable number.

1745412217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745412217 is an equidigital number, since it uses as much as digits as its factorization.

1745412217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 34.

The square root of 1745412217 is about 41778.1308461736. The cubic root of 1745412217 is about 1204.0171429166.

Adding to 1745412217 its reverse (7122145471), we get a palindrome (8867557688).

The spelling of 1745412217 in words is "one billion, seven hundred forty-five million, four hundred twelve thousand, two hundred seventeen".