745370173 has 2 divisors, whose sum is σ = 745370174. Its totient is φ = 745370172.

The previous prime is 745370167. The next prime is 745370191. The reversal of 745370173 is 371073547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534626884 + 210743289 = 23122^2 + 14517^2 .

It is a cyclic number.

It is not a de Polignac number, because 745370173 - 2²¹ = 743273021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745370123) 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, 372685086 + 372685087.

It is an arithmetic number, because the mean of its divisors is an integer number (372685087).

Almost surely, 2^745370173 is an apocalyptic number.

It is an amenable number.

745370173 is a deficient number, since it is larger than the sum of its proper divisors (1).

745370173 is an equidigital number, since it uses as much as digits as its factorization.

745370173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 745370173 is about 27301.4683304763. The cubic root of 745370173 is about 906.6868908737.

The spelling of 745370173 in words is "seven hundred forty-five million, three hundred seventy thousand, one hundred seventy-three".