71318072 has 32 divisors (see below), whose sum is σ = 155714400. Its totient is φ = 29986944.

The previous prime is 71318059. The next prime is 71318099. The reversal of 71318072 is 27081317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9047 + ... + 14982.

It is an arithmetic number, because the mean of its divisors is an integer number (4866075).

Almost surely, 2^71318072 is an apocalyptic number.

It is an amenable number.

71318072 is an abundant number, since it is smaller than the sum of its proper divisors (84396328).

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

71318072 is a wasteful number, since it uses less digits than its factorization.

71318072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24095 (or 24091 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 71318072 is about 8445.0027827112. The cubic root of 71318072 is about 414.6992004241.

Adding to 71318072 its reverse (27081317), we get a palindrome (98399389).

The spelling of 71318072 in words is "seventy-one million, three hundred eighteen thousand, seventy-two".