8142231161 has 4 divisors (see below), whose sum is σ = 8144543232. Its totient is φ = 8139919092.

The previous prime is 8142231151. The next prime is 8142231169. The reversal of 8142231161 is 1611322418.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8142231161 - 2¹⁰ = 8142230137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142231169) 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, 1150745 + ... + 1157798.

It is an arithmetic number, because the mean of its divisors is an integer number (2036135808).

Almost surely, 2^8142231161 is an apocalyptic number.

It is an amenable number.

8142231161 is a deficient number, since it is larger than the sum of its proper divisors (2312071).

8142231161 is a wasteful number, since it uses less digits than its factorization.

8142231161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312070.

The product of its digits is 2304, while the sum is 29.

The square root of 8142231161 is about 90234.3125479438. The cubic root of 8142231161 is about 2011.7830403997.

Adding to 8142231161 its reverse (1611322418), we get a palindrome (9753553579).

The spelling of 8142231161 in words is "eight billion, one hundred forty-two million, two hundred thirty-one thousand, one hundred sixty-one".