201868 has 12 divisors (see below), whose sum is σ = 357280. Its totient is φ = 99792.

The previous prime is 201847. The next prime is 201881. The reversal of 201868 is 868102.

201868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

201868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205 + ... + 667.

2²⁰¹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

201868 is a deficient number, since it is larger than the sum of its proper divisors (155412).

201868 is a wasteful number, since it uses less digits than its factorization.

201868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 201868 is about 449.2972290144. The cubic root of 201868 is about 58.6618596842.

The spelling of 201868 in words is "two hundred one thousand, eight hundred sixty-eight".