71271572 has 12 divisors (see below), whose sum is σ = 130148256. Its totient is φ = 34086360.

The previous prime is 71271539. The next prime is 71271581. The reversal of 71271572 is 27517217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387254 + ... + 387437.

It is an arithmetic number, because the mean of its divisors is an integer number (10845688).

Almost surely, 2^71271572 is an apocalyptic number.

It is an amenable number.

71271572 is a deficient number, since it is larger than the sum of its proper divisors (58876684).

71271572 is a wasteful number, since it uses less digits than its factorization.

71271572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774718 (or 774716 counting only the distinct ones).

The product of its digits is 6860, while the sum is 32.

The square root of 71271572 is about 8442.2492263614. The cubic root of 71271572 is about 414.6090516731.

Adding to 71271572 its reverse (27517217), we get a palindrome (98788789).

The spelling of 71271572 in words is "seventy-one million, two hundred seventy-one thousand, five hundred seventy-two".