2180000071 has 2 divisors, whose sum is σ = 2180000072. Its totient is φ = 2180000070.

The previous prime is 2180000057. The next prime is 2180000089. The reversal of 2180000071 is 1700000812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2180000071 - 2¹⁹ = 2179475783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180001071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090000035 + 1090000036.

It is an arithmetic number, because the mean of its divisors is an integer number (1090000036).

Almost surely, 2^2180000071 is an apocalyptic number.

2180000071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180000071 is an equidigital number, since it uses as much as digits as its factorization.

2180000071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 2180000071 is about 46690.4708800415. The cubic root of 2180000071 is about 1296.6382710508.

Adding to 2180000071 its reverse (1700000812), we get a palindrome (3880000883).

The spelling of 2180000071 in words is "two billion, one hundred eighty million, seventy-one", and thus it is an aban number.