71271472 has 20 divisors (see below), whose sum is σ = 141821776. Its totient is φ = 34672320.

The previous prime is 71271461. The next prime is 71271479. The reversal of 71271472 is 27417217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71271479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 59604 + ... + 60787.

Almost surely, 2^71271472 is an apocalyptic number.

It is an amenable number.

71271472 is a deficient number, since it is larger than the sum of its proper divisors (70550304).

71271472 is a wasteful number, since it uses less digits than its factorization.

71271472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120436 (or 120430 counting only the distinct ones).

The product of its digits is 5488, while the sum is 31.

The square root of 71271472 is about 8442.2433037671. The cubic root of 71271472 is about 414.6088577626.

Adding to 71271472 its reverse (27417217), we get a palindrome (98688689).

The spelling of 71271472 in words is "seventy-one million, two hundred seventy-one thousand, four hundred seventy-two".