71365071 has 4 divisors (see below), whose sum is σ = 95153432. Its totient is φ = 47576712.

The previous prime is 71365057. The next prime is 71365097. The reversal of 71365071 is 17056317.

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

It is not a de Polignac number, because 71365071 - 2²² = 67170767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71365171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11894176 + ... + 11894181.

It is an arithmetic number, because the mean of its divisors is an integer number (23788358).

Almost surely, 2^71365071 is an apocalyptic number.

71365071 is a deficient number, since it is larger than the sum of its proper divisors (23788361).

71365071 is a wasteful number, since it uses less digits than its factorization.

71365071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23788360.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 71365071 is about 8447.7849759567. The cubic root of 71365071 is about 414.7902767685.

The spelling of 71365071 in words is "seventy-one million, three hundred sixty-five thousand, seventy-one".