173216 has 12 divisors (see below), whose sum is σ = 341082. Its totient is φ = 86592.

The previous prime is 173209. The next prime is 173219. The reversal of 173216 is 612371.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163216 + 10000 = 404^2 + 100^2 .

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 as a sum of consecutive naturals, namely, 2675 + ... + 2738.

2¹⁷³²¹⁶ is an apocalyptic number.

173216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

173216 is a deficient number, since it is larger than the sum of its proper divisors (167866).

173216 is an equidigital number, since it uses as much as digits as its factorization.

173216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423 (or 5415 counting only the distinct ones).

The product of its digits is 252, while the sum is 20.

The square root of 173216 is about 416.1922632630. The cubic root of 173216 is about 55.7437269648.

Adding to 173216 its reverse (612371), we get a palindrome (785587).

The spelling of 173216 in words is "one hundred seventy-three thousand, two hundred sixteen".