71000512 has 28 divisors (see below), whose sum is σ = 153701496. Its totient is φ = 32272640.

The previous prime is 71000467. The next prime is 71000513. The reversal of 71000512 is 21500017.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71000513) 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, 49723 + ... + 51130.

Almost surely, 2^71000512 is an apocalyptic number.

It is an amenable number.

71000512 is an abundant number, since it is smaller than the sum of its proper divisors (82700984).

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

71000512 is a wasteful number, since it uses less digits than its factorization.

71000512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100876 (or 100866 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 71000512 is about 8426.1801547320. The cubic root of 71000512 is about 414.0827702914.

Adding to 71000512 its reverse (21500017), we get a palindrome (92500529).

It can be divided in two parts, 710005 and 12, that added together give a palindrome (710017).

The spelling of 71000512 in words is "seventy-one million, five hundred twelve", and thus it is an aban number.