142081347729 has 12 divisors (see below), whose sum is σ = 201240941264. Its totient is φ = 89149080384.

The previous prime is 142081347721. The next prime is 142081347827. The reversal of 142081347729 is 927743180241.

It is not a de Polignac number, because 142081347729 - 2³ = 142081347721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142081347721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81937627 + ... + 81939360.

Almost surely, 2^142081347729 is an apocalyptic number.

It is an amenable number.

142081347729 is a deficient number, since it is larger than the sum of its proper divisors (59159593535).

142081347729 is a wasteful number, since it uses less digits than its factorization.

142081347729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163877024 (or 163877007 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 142081347729 in words is "one hundred forty-two billion, eighty-one million, three hundred forty-seven thousand, seven hundred twenty-nine".