1745623073 has 2 divisors, whose sum is σ = 1745623074. Its totient is φ = 1745623072.

The previous prime is 1745623069. The next prime is 1745623169. The reversal of 1745623073 is 3703265471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1716279184 + 29343889 = 41428^2 + 5417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745623073 - 2² = 1745623069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1745623273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872811536 + 872811537.

It is an arithmetic number, because the mean of its divisors is an integer number (872811537).

Almost surely, 2^1745623073 is an apocalyptic number.

It is an amenable number.

1745623073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745623073 is an equidigital number, since it uses as much as digits as its factorization.

1745623073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 1745623073 is about 41780.6542911908. The cubic root of 1745623073 is about 1204.0656250676.

The spelling of 1745623073 in words is "one billion, seven hundred forty-five million, six hundred twenty-three thousand, seventy-three".