163285 has 12 divisors (see below), whose sum is σ = 209988. Its totient is φ = 121856.

The previous prime is 163259. The next prime is 163307. The reversal of 163285 is 582361.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1681 + 161604 = 41^2 + 402^2 .

It is not a de Polignac number, because 163285 - 2¹¹ = 161237 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1389 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (17499).

163285 is a Friedman number, since it can be written as 21*6^5-8-3, using all its digits and the basic arithmetic operations.

2¹⁶³²⁸⁵ is an apocalyptic number.

It is an amenable number.

163285 is a deficient number, since it is larger than the sum of its proper divisors (46703).

163285 is a wasteful number, since it uses less digits than its factorization.

163285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 135 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 163285 is about 404.0853870162. The cubic root of 163285 is about 54.6573741558.

The spelling of 163285 in words is "one hundred sixty-three thousand, two hundred eighty-five".