2047171005 has 48 divisors (see below), whose sum is σ = 4039341696. Its totient is φ = 949407360.

The previous prime is 2047171001. The next prime is 2047171067. The reversal of 2047171005 is 5001717402.

It is not a de Polignac number, because 2047171005 - 2² = 2047171001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2047171005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047171001) 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 47 ways as a sum of consecutive naturals, for example, 78522 + ... + 101291.

It is an arithmetic number, because the mean of its divisors is an integer number (84152952).

Almost surely, 2^2047171005 is an apocalyptic number.

It is an amenable number.

2047171005 is a deficient number, since it is larger than the sum of its proper divisors (1992170691).

2047171005 is a wasteful number, since it uses less digits than its factorization.

2047171005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179858 (or 179855 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 2047171005 is about 45245.6738815989. The cubic root of 2047171005 is about 1269.7494711146.

Adding to 2047171005 its reverse (5001717402), we get a palindrome (7048888407).

The spelling of 2047171005 in words is "two billion, forty-seven million, one hundred seventy-one thousand, five".