142206 has 16 divisors (see below), whose sum is σ = 288144. Its totient is φ = 46784.

The previous prime is 142193. The next prime is 142211. The reversal of 142206 is 602241.

It is a Curzon 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 142206.

It is an unprimeable number.

142206 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736 + ... + 908.

It is an arithmetic number, because the mean of its divisors is an integer number (18009).

2¹⁴²²⁰⁶ is an apocalyptic number.

142206 is the 239-th centered pentagonal number.

142206 is an abundant number, since it is smaller than the sum of its proper divisors (145938).

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

142206 is a wasteful number, since it uses less digits than its factorization.

142206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

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

The square root of 142206 is about 377.1021081882. The cubic root of 142206 is about 52.1962505197.

Adding to 142206 its reverse (602241), we get a palindrome (744447).

The spelling of 142206 in words is "one hundred forty-two thousand, two hundred six".