142806 has 8 divisors (see below), whose sum is σ = 285624. Its totient is φ = 47600.

The previous prime is 142799. The next prime is 142811. The reversal of 142806 is 608241.

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

142806 is an admirable number.

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 142806.

It is an unprimeable number.

142806 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, 11895 + ... + 11906.

It is an arithmetic number, because the mean of its divisors is an integer number (35703).

2¹⁴²⁸⁰⁶ is an apocalyptic number.

142806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142806 is a wasteful number, since it uses less digits than its factorization.

142806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23806.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 142806 is about 377.8968113123. The cubic root of 142806 is about 52.2695568679.

The spelling of 142806 in words is "one hundred forty-two thousand, eight hundred six".