142185436161 has 8 divisors (see below), whose sum is σ = 189810937920. Its totient is φ = 94675112592.

The previous prime is 142185436157. The next prime is 142185436223. The reversal of 142185436161 is 161634581241.

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

It is not a de Polignac number, because 142185436161 - 2² = 142185436157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142185426161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28791666 + ... + 28796603.

It is an arithmetic number, because the mean of its divisors is an integer number (23726367240).

Almost surely, 2^142185436161 is an apocalyptic number.

It is an amenable number.

142185436161 is a deficient number, since it is larger than the sum of its proper divisors (47625501759).

142185436161 is an equidigital number, since it uses as much as digits as its factorization.

142185436161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57589095.

The product of its digits is 138240, while the sum is 42.

The spelling of 142185436161 in words is "one hundred forty-two billion, one hundred eighty-five million, four hundred thirty-six thousand, one hundred sixty-one".