142687133821 has 8 divisors (see below), whose sum is σ = 157649212224. Its totient is φ = 128454912960.

The previous prime is 142687133759. The next prime is 142687133843. The reversal of 142687133821 is 128331786241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142687133821 - 2¹⁷ = 142687002749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142687133921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182463975 + ... + 182464756.

It is an arithmetic number, because the mean of its divisors is an integer number (19706151528).

Almost surely, 2^142687133821 is an apocalyptic number.

It is an amenable number.

142687133821 is a deficient number, since it is larger than the sum of its proper divisors (14962078403).

142687133821 is a wasteful number, since it uses less digits than its factorization.

142687133821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364928771.

The product of its digits is 387072, while the sum is 46.

The spelling of 142687133821 in words is "one hundred forty-two billion, six hundred eighty-seven million, one hundred thirty-three thousand, eight hundred twenty-one".