142166 has 8 divisors (see below), whose sum is σ = 220224. Its totient is φ = 68760.

The previous prime is 142159. The next prime is 142169. The reversal of 142166 is 661241.

It is a happy number.

142166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×142166² = 40422343112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142169) by changing a digit.

142166 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, 1085 + ... + 1208.

It is an arithmetic number, because the mean of its divisors is an integer number (27528).

2¹⁴²¹⁶⁶ is an apocalyptic number.

142166 is a deficient number, since it is larger than the sum of its proper divisors (78058).

142166 is a wasteful number, since it uses less digits than its factorization.

142166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

The product of its digits is 288, while the sum is 20.

The square root of 142166 is about 377.0490684248. The cubic root of 142166 is about 52.1913561041.

The spelling of 142166 in words is "one hundred forty-two thousand, one hundred sixty-six".