142176737161 has 4 divisors (see below), whose sum is σ = 147079383300. Its totient is φ = 137274091024.

The previous prime is 142176737119. The next prime is 142176737221. The reversal of 142176737161 is 161737671241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114139244025 + 28037493136 = 337845^2 + 167444^2 .

It is a cyclic number.

It is not a de Polignac number, because 142176737161 - 2⁹ = 142176736649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142176737111) 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 3 ways as a sum of consecutive naturals, for example, 2451323026 + ... + 2451323083.

It is an arithmetic number, because the mean of its divisors is an integer number (36769845825).

Almost surely, 2^142176737161 is an apocalyptic number.

It is an amenable number.

142176737161 is a deficient number, since it is larger than the sum of its proper divisors (4902646139).

142176737161 is an equidigital number, since it uses as much as digits as its factorization.

142176737161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902646138.

The product of its digits is 296352, while the sum is 46.

The spelling of 142176737161 in words is "one hundred forty-two billion, one hundred seventy-six million, seven hundred thirty-seven thousand, one hundred sixty-one".