142522513312521 has 32 divisors (see below), whose sum is σ = 194997917761920. Its totient is φ = 92539012032000.

The previous prime is 142522513312519. The next prime is 142522513312561. The reversal of 142522513312521 is 125213315225241.

It is a happy number.

142522513312521 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142522513312521 - 2¹ = 142522513312519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142522513312521.

It is not an unprimeable number, because it can be changed into a prime (142522513312561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1048053510 + ... + 1048189488.

It is an arithmetic number, because the mean of its divisors is an integer number (6093684930060).

Almost surely, 2^{142522513312521} is an apocalyptic number.

It is an amenable number.

142522513312521 is a deficient number, since it is larger than the sum of its proper divisors (52475404449399).

142522513312521 is a wasteful number, since it uses less digits than its factorization.

142522513312521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150537.

The product of its digits is 144000, while the sum is 39.

Adding to 142522513312521 its reverse (125213315225241), we get a palindrome (267735828537762).

The spelling of 142522513312521 in words is "one hundred forty-two trillion, five hundred twenty-two billion, five hundred thirteen million, three hundred twelve thousand, five hundred twenty-one".