142122472127999 has 4 divisors (see below), whose sum is σ = 155042696866920. Its totient is φ = 129202247389080.

The previous prime is 142122472127963. The next prime is 142122472128067. The reversal of 142122472127999 is 999721274221241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142122472127999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142122472127939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460112369444 + ... + 6460112369465.

It is an arithmetic number, because the mean of its divisors is an integer number (38760674216730).

Almost surely, 2^{142122472127999} is an apocalyptic number.

142122472127999 is a deficient number, since it is larger than the sum of its proper divisors (12920224738921).

142122472127999 is a wasteful number, since it uses less digits than its factorization.

142122472127999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920224738920.

The product of its digits is 18289152, while the sum is 62.

The spelling of 142122472127999 in words is "one hundred forty-two trillion, one hundred twenty-two billion, four hundred seventy-two million, one hundred twenty-seven thousand, nine hundred ninety-nine".