2081172127 has 2 divisors, whose sum is σ = 2081172128. Its totient is φ = 2081172126.

The previous prime is 2081172091. The next prime is 2081172131. The reversal of 2081172127 is 7212711802.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081172127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081176127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040586063 + 1040586064.

It is an arithmetic number, because the mean of its divisors is an integer number (1040586064).

Almost surely, 2^2081172127 is an apocalyptic number.

2081172127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081172127 is an equidigital number, since it uses as much as digits as its factorization.

2081172127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 2081172127 is about 45619.8654864304. The cubic root of 2081172127 is about 1276.7405937719.

Adding to 2081172127 its reverse (7212711802), we get a palindrome (9293883929).

The spelling of 2081172127 in words is "two billion, eighty-one million, one hundred seventy-two thousand, one hundred twenty-seven".