1745223173 has 2 divisors, whose sum is σ = 1745223174. Its totient is φ = 1745223172.

The previous prime is 1745223157. The next prime is 1745223203. The reversal of 1745223173 is 3713225471.

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., 1541504644 + 203718529 = 39262^2 + 14273^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745223173 - 2⁴ = 1745223157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1745223113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872611586 + 872611587.

It is an arithmetic number, because the mean of its divisors is an integer number (872611587).

Almost surely, 2^1745223173 is an apocalyptic number.

It is an amenable number.

1745223173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745223173 is an equidigital number, since it uses as much as digits as its factorization.

1745223173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 1745223173 is about 41775.8683093482. The cubic root of 1745223173 is about 1203.9736726822.

The spelling of 1745223173 in words is "one billion, seven hundred forty-five million, two hundred twenty-three thousand, one hundred seventy-three".