71123104 has 96 divisors (see below), whose sum is σ = 162887760. Its totient is φ = 30277632.

The previous prime is 71123093. The next prime is 71123119. The reversal of 71123104 is 40132117.

It can be written as a sum of positive squares in 8 ways, for example, as 4210704 + 66912400 = 2052^2 + 8180^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629352 + ... + 629464.

Almost surely, 2^71123104 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 71123104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81443880).

71123104 is an abundant number, since it is smaller than the sum of its proper divisors (91764656).

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

71123104 is a wasteful number, since it uses less digits than its factorization.

71123104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 71123104 is about 8433.4514879734. The cubic root of 71123104 is about 414.3209565852.

The spelling of 71123104 in words is "seventy-one million, one hundred twenty-three thousand, one hundred four".