142856142859 has 4 divisors (see below), whose sum is σ = 150374887240. Its totient is φ = 135337398480.

The previous prime is 142856142811. The next prime is 142856142887. The reversal of 142856142859 is 958241658241.

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

It is a cyclic number.

It is not a de Polignac number, because 142856142859 - 2⁷ = 142856142731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142856142899) 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, 3759372162 + ... + 3759372199.

It is an arithmetic number, because the mean of its divisors is an integer number (37593721810).

Almost surely, 2^142856142859 is an apocalyptic number.

142856142859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

142856142859 is a deficient number, since it is larger than the sum of its proper divisors (7518744381).

142856142859 is an equidigital number, since it uses as much as digits as its factorization.

142856142859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518744380.

The product of its digits is 5529600, while the sum is 55.

The spelling of 142856142859 in words is "one hundred forty-two billion, eight hundred fifty-six million, one hundred forty-two thousand, eight hundred fifty-nine".