2143342161 has 8 divisors (see below), whose sum is σ = 3175321760. Its totient is φ = 1428894756.

The previous prime is 2143342151. The next prime is 2143342163. The reversal of 2143342161 is 1612433412.

It is a happy number.

It is not a de Polignac number, because 2143342161 - 2⁵ = 2143342129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 79383043 = 2143342161 / (2 + 1 + 4 + 3 + 3 + 4 + 2 + 1 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143342163) 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, 39691495 + ... + 39691548.

It is an arithmetic number, because the mean of its divisors is an integer number (396915220).

Almost surely, 2^2143342161 is an apocalyptic number.

It is an amenable number.

2143342161 is a deficient number, since it is larger than the sum of its proper divisors (1031979599).

2143342161 is an equidigital number, since it uses as much as digits as its factorization.

2143342161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79383052 (or 79383046 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2143342161 is about 46296.2434869180. The cubic root of 2143342161 is about 1289.3292510812.

Adding to 2143342161 its reverse (1612433412), we get a palindrome (3755775573).

The spelling of 2143342161 in words is "two billion, one hundred forty-three million, three hundred forty-two thousand, one hundred sixty-one".