173225 has 18 divisors (see below), whose sum is σ = 238266. Its totient is φ = 124800.

The previous prime is 173219. The next prime is 173249. The reversal of 173225 is 522371.

173225 = T₁₀₅ + T₁₀₆ + ... + T₁₂₉.

It can be written as a sum of positive squares in 9 ways, for example, as 151321 + 21904 = 389^2 + 148^2 .

It is not a de Polignac number, because 173225 - 2⁴ = 173209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173197 and 173206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4205 + ... + 4245.

It is an arithmetic number, because the mean of its divisors is an integer number (13237).

2¹⁷³²²⁵ is an apocalyptic number.

It is an amenable number.

173225 is a deficient number, since it is larger than the sum of its proper divisors (65041).

173225 is a wasteful number, since it uses less digits than its factorization.

173225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 59 counting only the distinct ones).

The product of its digits is 420, while the sum is 20.

The square root of 173225 is about 416.2030754331. The cubic root of 173225 is about 55.7446923969.

Adding to 173225 its reverse (522371), we get a palindrome (695596).

The spelling of 173225 in words is "one hundred seventy-three thousand, two hundred twenty-five".