71123760 has 120 divisors (see below), whose sum is σ = 240658704. Its totient is φ = 18823680.

The previous prime is 71123749. The next prime is 71123791. The reversal of 71123760 is 6732117.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124275 + ... + 124845.

Almost surely, 2^71123760 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 71123760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120329352).

71123760 is an abundant number, since it is smaller than the sum of its proper divisors (169534944).

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

71123760 is a wasteful number, since it uses less digits than its factorization.

71123760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 71123760 is about 8433.4903806194. The cubic root of 71123760 is about 414.3222304034.

Adding to 71123760 its reverse (6732117), we get a palindrome (77855877).

The spelling of 71123760 in words is "seventy-one million, one hundred twenty-three thousand, seven hundred sixty".