71112472 has 16 divisors (see below), whose sum is σ = 134560800. Its totient is φ = 35229600.

The previous prime is 71112467. The next prime is 71112473. The reversal of 71112472 is 27421117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71112473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39904 + ... + 41647.

It is an arithmetic number, because the mean of its divisors is an integer number (8410050).

Almost surely, 2^71112472 is an apocalyptic number.

It is an amenable number.

71112472 is a deficient number, since it is larger than the sum of its proper divisors (63448328).

71112472 is a wasteful number, since it uses less digits than its factorization.

71112472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81666 (or 81662 counting only the distinct ones).

The product of its digits is 784, while the sum is 25.

The square root of 71112472 is about 8432.8211175146. The cubic root of 71112472 is about 414.3003103175.

Adding to 71112472 its reverse (27421117), we get a palindrome (98533589).

The spelling of 71112472 in words is "seventy-one million, one hundred twelve thousand, four hundred seventy-two".