71713161 has 16 divisors (see below), whose sum is σ = 114414720. Its totient is φ = 44130960.

The previous prime is 71713153. The next prime is 71713177. The reversal of 71713161 is 16131717.

It is not a de Polignac number, because 71713161 - 2³ = 71713153 is a prime.

It is a super-2 number, since 2×71713161² = 10285554921223842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71713111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101805 + ... + 102506.

It is an arithmetic number, because the mean of its divisors is an integer number (7150920).

Almost surely, 2^71713161 is an apocalyptic number.

It is an amenable number.

71713161 is a deficient number, since it is larger than the sum of its proper divisors (42701559).

71713161 is a wasteful number, since it uses less digits than its factorization.

71713161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204333 (or 204327 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 71713161 is about 8468.3623564418. The cubic root of 71713161 is about 415.4635764185.

Adding to 71713161 its reverse (16131717), we get a palindrome (87844878).

The spelling of 71713161 in words is "seventy-one million, seven hundred thirteen thousand, one hundred sixty-one".