71018012 has 12 divisors (see below), whose sum is σ = 133841736. Its totient is φ = 32777520.

The previous prime is 71018009. The next prime is 71018021. The reversal of 71018012 is 21081017.

It is a super-3 number, since 3×71018012³ (a number of 25 digits) contains 333 as substring.

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, 682814 + ... + 682917.

It is an arithmetic number, because the mean of its divisors is an integer number (11153478).

Almost surely, 2^71018012 is an apocalyptic number.

It is an amenable number.

71018012 is a deficient number, since it is larger than the sum of its proper divisors (62823724).

71018012 is a wasteful number, since it uses less digits than its factorization.

71018012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365748 (or 1365746 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 71018012 is about 8427.2185209593. The cubic root of 71018012 is about 414.1167881362.

Adding to 71018012 its reverse (21081017), we get a palindrome (92099029).

The spelling of 71018012 in words is "seventy-one million, eighteen thousand, twelve".