71316543 has 8 divisors (see below), whose sum is σ = 95194800. Its totient is φ = 47491328.

The previous prime is 71316533. The next prime is 71316551. The reversal of 71316543 is 34561317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71316543 - 2⁴ = 71316527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71316543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71316533) 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 7 ways as a sum of consecutive naturals, for example, 10008 + ... + 15581.

It is an arithmetic number, because the mean of its divisors is an integer number (11899350).

Almost surely, 2^71316543 is an apocalyptic number.

71316543 is a deficient number, since it is larger than the sum of its proper divisors (23878257).

71316543 is a wasteful number, since it uses less digits than its factorization.

71316543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26521.

The product of its digits is 7560, while the sum is 30.

The square root of 71316543 is about 8444.9122553168. The cubic root of 71316543 is about 414.6962368013.

The spelling of 71316543 in words is "seventy-one million, three hundred sixteen thousand, five hundred forty-three".