173215 has 16 divisors (see below), whose sum is σ = 244800. Its totient is φ = 117600.

The previous prime is 173209. The next prime is 173219. The reversal of 173215 is 512371.

It is not a de Polignac number, because 173215 - 2³ = 173207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 173192 and 173201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (15300).

2¹⁷³²¹⁵ is an apocalyptic number.

173215 is a deficient number, since it is larger than the sum of its proper divisors (71585).

173215 is an equidigital number, since it uses as much as digits as its factorization.

173215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 113 counting only the distinct ones).

The product of its digits is 210, while the sum is 19.

The square root of 173215 is about 416.1910618935. The cubic root of 173215 is about 55.7436196925.

Adding to 173215 its reverse (512371), we get a palindrome (685586).

The spelling of 173215 in words is "one hundred seventy-three thousand, two hundred fifteen".