142142046089 has 2 divisors, whose sum is σ = 142142046090.
Its totient is φ = 142142046088.
The previous prime is 142142046047. The next prime is 142142046139. The reversal of 142142046089 is 980640241241.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 83343070864 + 58798975225 = 288692^2 + 242485^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-142142046089 is a prime.
It is a super-2 number, since 2×1421420460892 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (142142046589) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71071023044 + 71071023045.
It is an arithmetic number, because the mean of its divisors is an integer number (71071023045).
Almost surely, 2142142046089 is an apocalyptic number.
It is an amenable number.
142142046089 is a deficient number, since it is larger than the sum of its proper divisors (1).
142142046089 is an equidigital number, since it uses as much as digits as its factorization.
142142046089 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 110592, while the sum is 41.
The spelling of 142142046089 in words is "one hundred forty-two billion, one hundred forty-two million, forty-six thousand, eighty-nine".