142859 has 4 divisors (see below), whose sum is σ = 143616. Its totient is φ = 142104.

The previous prime is 142841. The next prime is 142867. The reversal of 142859 is 958241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 958241 = 31 ⋅30911.

It is a cyclic number.

It is not a de Polignac number, because 142859 - 2¹² = 138763 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

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 142859.

It is not an unprimeable number, because it can be changed into a prime (142159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182 + ... + 564.

It is an arithmetic number, because the mean of its divisors is an integer number (35904).

2¹⁴²⁸⁵⁹ is an apocalyptic number.

142859 is a deficient number, since it is larger than the sum of its proper divisors (757).

142859 is an equidigital number, since it uses as much as digits as its factorization.

142859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its digits is 2880, while the sum is 29.

The square root of 142859 is about 377.9669297703. The cubic root of 142859 is about 52.2760223849.

It can be divided in two parts, 142 and 859, that added together give a palindrome (1001).

The spelling of 142859 in words is "one hundred forty-two thousand, eight hundred fifty-nine".