71168071 has 4 divisors (see below), whose sum is σ = 76642552. Its totient is φ = 65693592.

The previous prime is 71168047. The next prime is 71168077. The reversal of 71168071 is 17086117.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71168071 - 2⁵ = 71168039 is a prime.

It is a super-2 number, since 2×71168071² = 10129788659722082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71168077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2737221 + ... + 2737246.

It is an arithmetic number, because the mean of its divisors is an integer number (19160638).

Almost surely, 2^71168071 is an apocalyptic number.

71168071 is a deficient number, since it is larger than the sum of its proper divisors (5474481).

71168071 is a wasteful number, since it uses less digits than its factorization.

71168071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474480.

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 71168071 is about 8436.1170570352. The cubic root of 71168071 is about 414.4082552003.

The spelling of 71168071 in words is "seventy-one million, one hundred sixty-eight thousand, seventy-one".