142402145017 has 4 divisors (see below), whose sum is σ = 155347794576. Its totient is φ = 129456495460.

The previous prime is 142402144979. The next prime is 142402145063. The reversal of 142402145017 is 710541204241.

It is a happy number.

142402145017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142402145017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142402145017.

It is not an unprimeable number, because it can be changed into a prime (142402145077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6472824763 + ... + 6472824784.

It is an arithmetic number, because the mean of its divisors is an integer number (38836948644).

Almost surely, 2^142402145017 is an apocalyptic number.

It is an amenable number.

142402145017 is a deficient number, since it is larger than the sum of its proper divisors (12945649559).

142402145017 is a wasteful number, since it uses less digits than its factorization.

142402145017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12945649558.

The product of its (nonzero) digits is 8960, while the sum is 31.

Adding to 142402145017 its reverse (710541204241), we get a palindrome (852943349258).

The spelling of 142402145017 in words is "one hundred forty-two billion, four hundred two million, one hundred forty-five thousand, seventeen".