71212034527 has 4 divisors (see below), whose sum is σ = 71755637976. Its totient is φ = 70668431080.

The previous prime is 71212034503. The next prime is 71212034539. The reversal of 71212034527 is 72543021217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71212034527 is a prime.

It is a super-2 number, since 2×71212034527² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71212034492 and 71212034501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71212034567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271801528 + ... + 271801789.

It is an arithmetic number, because the mean of its divisors is an integer number (17938909494).

Almost surely, 2^71212034527 is an apocalyptic number.

71212034527 is a deficient number, since it is larger than the sum of its proper divisors (543603449).

71212034527 is a wasteful number, since it uses less digits than its factorization.

71212034527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543603448.

The product of its (nonzero) digits is 23520, while the sum is 34.

It can be divided in two parts, 712120 and 34527, that added together give a palindrome (746647).

The spelling of 71212034527 in words is "seventy-one billion, two hundred twelve million, thirty-four thousand, five hundred twenty-seven".