206142 has 32 divisors (see below), whose sum is σ = 456192. Its totient is φ = 61824.

The previous prime is 206123. The next prime is 206153. The reversal of 206142 is 241602.

206142 is nontrivially palindromic in base 5.

206142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206142.

It is an unprimeable number.

206142 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 15 ways as a sum of consecutive naturals, for example, 4363 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2²⁰⁶¹⁴² is an apocalyptic number.

206142 is an abundant number, since it is smaller than the sum of its proper divisors (250050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206142 is a wasteful number, since it uses less digits than its factorization.

206142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 206142 is about 454.0286334583. The cubic root of 206142 is about 59.0729730035.

Adding to 206142 its reverse (241602), we get a palindrome (447744).

The spelling of 206142 in words is "two hundred six thousand, one hundred forty-two".