80671271 has 2 divisors, whose sum is σ = 80671272. Its totient is φ = 80671270.

The previous prime is 80671229. The next prime is 80671277. The reversal of 80671271 is 17217608.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80671271 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80671277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40335635 + 40335636.

It is an arithmetic number, because the mean of its divisors is an integer number (40335636).

Almost surely, 2^80671271 is an apocalyptic number.

80671271 is a deficient number, since it is larger than the sum of its proper divisors (1).

80671271 is an equidigital number, since it uses as much as digits as its factorization.

80671271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 80671271 is about 8981.7187108036. The cubic root of 80671271 is about 432.0887574116.

Adding to 80671271 its reverse (17217608), we get a palindrome (97888879).

The spelling of 80671271 in words is "eighty million, six hundred seventy-one thousand, two hundred seventy-one".