142998735581 has 16 divisors (see below), whose sum is σ = 154615980288. Its totient is φ = 131469998400.

The previous prime is 142998735569. The next prime is 142998735619. The reversal of 142998735581 is 185537899241.

142998735581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142998735581 - 2³⁰ = 141924993757 is a prime.

It is a super-2 number, since 2×142998735581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142998735881) 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 15 ways as a sum of consecutive naturals, for example, 19291766 + ... + 19299176.

It is an arithmetic number, because the mean of its divisors is an integer number (9663498768).

Almost surely, 2^142998735581 is an apocalyptic number.

It is an amenable number.

142998735581 is a deficient number, since it is larger than the sum of its proper divisors (11617244707).

142998735581 is a wasteful number, since it uses less digits than its factorization.

142998735581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13172.

The product of its digits is 21772800, while the sum is 62.

The spelling of 142998735581 in words is "one hundred forty-two billion, nine hundred ninety-eight million, seven hundred thirty-five thousand, five hundred eighty-one".