142868143 has 8 divisors (see below), whose sum is σ = 156649680. Its totient is φ = 129218880.

The previous prime is 142868129. The next prime is 142868171. The reversal of 142868143 is 341868241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142868143 is a prime.

It is a super-2 number, since 2×142868143² = 40822612568536898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142868183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30798 + ... + 35131.

It is an arithmetic number, because the mean of its divisors is an integer number (19581210).

Almost surely, 2^142868143 is an apocalyptic number.

142868143 is a deficient number, since it is larger than the sum of its proper divisors (13781537).

142868143 is a wasteful number, since it uses less digits than its factorization.

142868143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66137.

The product of its digits is 36864, while the sum is 37.

The square root of 142868143 is about 11952.7462534766. The cubic root of 142868143 is about 522.7713758589.

The spelling of 142868143 in words is "one hundred forty-two million, eight hundred sixty-eight thousand, one hundred forty-three".