71031232 has 28 divisors (see below), whose sum is σ = 141279880. Its totient is φ = 35433216.

The previous prime is 71031223. The next prime is 71031271. The reversal of 71031232 is 23213017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33994 + ... + 36022.

It is an arithmetic number, because the mean of its divisors is an integer number (5045710).

Almost surely, 2^71031232 is an apocalyptic number.

It is an amenable number.

71031232 is a deficient number, since it is larger than the sum of its proper divisors (70248648).

71031232 is a wasteful number, since it uses less digits than its factorization.

71031232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588 (or 2578 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 71031232 is about 8428.0028476502. The cubic root of 71031232 is about 414.1424824830.

Adding to 71031232 its reverse (23213017), we get a palindrome (94244249).

The spelling of 71031232 in words is "seventy-one million, thirty-one thousand, two hundred thirty-two".