2162864161 has 2 divisors, whose sum is σ = 2162864162. Its totient is φ = 2162864160.

The previous prime is 2162864131. The next prime is 2162864201. The reversal of 2162864161 is 1614682612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1181984400 + 980879761 = 34380^2 + 31319^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162864161 - 2¹³ = 2162855969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2162864161.

It is not a weakly prime, because it can be changed into another prime (2162864101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081432080 + 1081432081.

It is an arithmetic number, because the mean of its divisors is an integer number (1081432081).

Almost surely, 2^2162864161 is an apocalyptic number.

It is an amenable number.

2162864161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162864161 is an equidigital number, since it uses as much as digits as its factorization.

2162864161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 2162864161 is about 46506.6034128488. The cubic root of 2162864161 is about 1293.2319179447.

The spelling of 2162864161 in words is "two billion, one hundred sixty-two million, eight hundred sixty-four thousand, one hundred sixty-one".