71471171 has 2 divisors, whose sum is σ = 71471172. Its totient is φ = 71471170.

The previous prime is 71471131. The next prime is 71471207. The reversal of 71471171 is 17117417.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (17117417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71471171 - 2⁶ = 71471107 is a prime.

It is a super-2 number, since 2×71471171² = 10216256568222482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71471131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35735585 + 35735586.

It is an arithmetic number, because the mean of its divisors is an integer number (35735586).

Almost surely, 2^71471171 is an apocalyptic number.

71471171 is a deficient number, since it is larger than the sum of its proper divisors (1).

71471171 is an equidigital number, since it uses as much as digits as its factorization.

71471171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1372, while the sum is 29.

The square root of 71471171 is about 8454.0623962684. The cubic root of 71471171 is about 414.9957342185.

Adding to 71471171 its reverse (17117417), we get a palindrome (88588588).

The spelling of 71471171 in words is "seventy-one million, four hundred seventy-one thousand, one hundred seventy-one".