71011071 has 6 divisors (see below), whose sum is σ = 102571560. Its totient is φ = 47340708.

The previous prime is 71011067. The next prime is 71011079. The reversal of 71011071 is 17011017.

It is not a de Polignac number, because 71011071 - 2² = 71011067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71011079) 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 5 ways as a sum of consecutive naturals, for example, 3945051 + ... + 3945068.

It is an arithmetic number, because the mean of its divisors is an integer number (17095260).

Almost surely, 2^71011071 is an apocalyptic number.

71011071 is a deficient number, since it is larger than the sum of its proper divisors (31560489).

71011071 is a wasteful number, since it uses less digits than its factorization.

71011071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890125 (or 7890122 counting only the distinct ones).

The product of its (nonzero) digits is 49, while the sum is 18.

The square root of 71011071 is about 8426.8066905560. The cubic root of 71011071 is about 414.1032963558.

Adding to 71011071 its reverse (17011017), we get a palindrome (88022088).

It can be divided in two parts, 710 and 11071, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 71011071 in words is "seventy-one million, eleven thousand, seventy-one".