142858 has 4 divisors (see below), whose sum is σ = 214290. Its totient is φ = 71428.

The previous prime is 142841. The next prime is 142867. The reversal of 142858 is 858241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 142129 + 729 = 377^2 + 27^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35713 + ... + 35716.

2¹⁴²⁸⁵⁸ is an apocalyptic number.

142858 is a deficient number, since it is larger than the sum of its proper divisors (71432).

142858 is an equidigital number, since it uses as much as digits as its factorization.

142858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71431.

The product of its digits is 2560, while the sum is 28.

The square root of 142858 is about 377.9656069009. The cubic root of 142858 is about 52.2759004089.

It can be divided in two parts, 142 and 858, that added together give a cube (1000 = 10³).

The spelling of 142858 in words is "one hundred forty-two thousand, eight hundred fifty-eight".