71330112 has 112 divisors (see below), whose sum is σ = 239694720. Its totient is φ = 20376576.

The previous prime is 71330081. The next prime is 71330131. The reversal of 71330112 is 21103317.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9148 + ... + 15044.

Almost surely, 2^71330112 is an apocalyptic number.

71330112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71330112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119847360).

71330112 is an abundant number, since it is smaller than the sum of its proper divisors (168364608).

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

71330112 is a wasteful number, since it uses less digits than its factorization.

71330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5925 (or 5909 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 71330112 is about 8445.7156002319. The cubic root of 71330112 is about 414.7225357784.

Adding to 71330112 its reverse (21103317), we get a palindrome (92433429).

The spelling of 71330112 in words is "seventy-one million, three hundred thirty thousand, one hundred twelve".