173285345 has 4 divisors (see below), whose sum is σ = 207942420. Its totient is φ = 138628272.

The previous prime is 173285327. The next prime is 173285347. The reversal of 173285345 is 543582371.

173285345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543582371 = 191 ⋅2845981.

It can be written as a sum of positive squares in 2 ways, for example, as 38887696 + 134397649 = 6236^2 + 11593^2 .

It is a cyclic number.

It is not a de Polignac number, because 173285345 - 2⁸ = 173285089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 173285299 and 173285308.

It is not an unprimeable number, because it can be changed into a prime (173285347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17328530 + ... + 17328539.

It is an arithmetic number, because the mean of its divisors is an integer number (51985605).

Almost surely, 2^173285345 is an apocalyptic number.

It is an amenable number.

173285345 is a deficient number, since it is larger than the sum of its proper divisors (34657075).

173285345 is an equidigital number, since it uses as much as digits as its factorization.

173285345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34657074.

The product of its digits is 100800, while the sum is 38.

The square root of 173285345 is about 13163.7891581414. The cubic root of 173285345 is about 557.5116475544.

The spelling of 173285345 in words is "one hundred seventy-three million, two hundred eighty-five thousand, three hundred forty-five".