71171112 has 64 divisors (see below), whose sum is σ = 198331200. Its totient is φ = 21150720.

The previous prime is 71171101. The next prime is 71171117. The reversal of 71171112 is 21117117.

It is not an unprimeable number, because it can be changed into a prime (71171117) 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, 3162 + ... + 12342.

It is an arithmetic number, because the mean of its divisors is an integer number (3098925).

Almost surely, 2^71171112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71171112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99165600).

71171112 is an abundant number, since it is smaller than the sum of its proper divisors (127160088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71171112 is a wasteful number, since it uses less digits than its factorization.

71171112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226 (or 9222 counting only the distinct ones).

The product of its digits is 98, while the sum is 21.

The square root of 71171112 is about 8436.2972920589. The cubic root of 71171112 is about 414.4141576485.

Adding to 71171112 its reverse (21117117), we get a palindrome (92288229).

The spelling of 71171112 in words is "seventy-one million, one hundred seventy-one thousand, one hundred twelve".