445532173 has 2 divisors, whose sum is σ = 445532174. Its totient is φ = 445532172.

The previous prime is 445532123. The next prime is 445532177. The reversal of 445532173 is 371235544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419348484 + 26183689 = 20478^2 + 5117^2 .

It is a cyclic number.

It is not a de Polignac number, because 445532173 - 2⁹ = 445531661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445532177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222766086 + 222766087.

It is an arithmetic number, because the mean of its divisors is an integer number (222766087).

Almost surely, 2^445532173 is an apocalyptic number.

It is an amenable number.

445532173 is a deficient number, since it is larger than the sum of its proper divisors (1).

445532173 is an equidigital number, since it uses as much as digits as its factorization.

445532173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 445532173 is about 21107.6330506289. The cubic root of 445532173 is about 763.7648903534.

The spelling of 445532173 in words is "four hundred forty-five million, five hundred thirty-two thousand, one hundred seventy-three".