201682 has 8 divisors (see below), whose sum is σ = 325836. Its totient is φ = 93072.

The previous prime is 201673. The next prime is 201683. The reversal of 201682 is 286102.

It is a happy number.

201682 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 201601 + 81 = 449^2 + 9^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (201683) by changing a digit.

201682 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3853 + ... + 3904.

2²⁰¹⁶⁸² is an apocalyptic number.

201682 is a deficient number, since it is larger than the sum of its proper divisors (124154).

201682 is a wasteful number, since it uses less digits than its factorization.

201682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 201682 is about 449.0901913870. The cubic root of 201682 is about 58.6438372491.

Adding to 201682 its reverse (286102), we get a palindrome (487784).

The spelling of 201682 in words is "two hundred one thousand, six hundred eighty-two".