142001278589 has 2 divisors, whose sum is σ = 142001278590.
Its totient is φ = 142001278588.
The previous prime is 142001278567. The next prime is 142001278591. The reversal of 142001278589 is 985872100241.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 105086188900 + 36915089689 = 324170^2 + 192133^2
It is a cyclic number.
It is not a de Polignac number, because 142001278589 - 220 = 142000230013 is a prime.
Together with 142001278591, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (142001278189) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71000639294 + 71000639295.
It is an arithmetic number, because the mean of its divisors is an integer number (71000639295).
Almost surely, 2142001278589 is an apocalyptic number.
It is an amenable number.
142001278589 is a deficient number, since it is larger than the sum of its proper divisors (1).
142001278589 is an equidigital number, since it uses as much as digits as its factorization.
142001278589 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 322560, while the sum is 47.
The spelling of 142001278589 in words is "one hundred forty-two billion, one million, two hundred seventy-eight thousand, five hundred eighty-nine".