142868 has 24 divisors (see below), whose sum is σ = 290304. Its totient is φ = 60800.

The previous prime is 142867. The next prime is 142871. The reversal of 142868 is 868241.

It is a super-2 number, since 2×142868² = 40822530848, which contains 22 as substring.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 142868.

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 142868.

It is not an unprimeable number, because it can be changed into a prime (142867) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 653 + ... + 843.

It is an arithmetic number, because the mean of its divisors is an integer number (12096).

2¹⁴²⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

142868 is an abundant number, since it is smaller than the sum of its proper divisors (147436).

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

142868 is a wasteful number, since it uses less digits than its factorization.

142868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 221 counting only the distinct ones).

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

The square root of 142868 is about 377.9788353863. The cubic root of 142868 is about 52.2771201441.

It can be divided in two parts, 142 and 868, that multiplied together give a triangular number (123256 = T₄₉₆).

The spelling of 142868 in words is "one hundred forty-two thousand, eight hundred sixty-eight".