142886 has 4 divisors (see below), whose sum is σ = 214332. Its totient is φ = 71442.

The previous prime is 142873. The next prime is 142897. The reversal of 142886 is 688241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688241 = 521 ⋅1321.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35720 + ... + 35723.

It is an arithmetic number, because the mean of its divisors is an integer number (53583).

2¹⁴²⁸⁸⁶ is an apocalyptic number.

142886 is a deficient number, since it is larger than the sum of its proper divisors (71446).

142886 is an equidigital number, since it uses as much as digits as its factorization.

142886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71445.

The product of its digits is 3072, while the sum is 29.

The square root of 142886 is about 378.0026454934. The cubic root of 142886 is about 52.2793155241.

It can be divided in two parts, 14 and 2886, that multiplied together give a palindrome (40404).

The spelling of 142886 in words is "one hundred forty-two thousand, eight hundred eighty-six".