71432543 has 12 divisors (see below), whose sum is σ = 89487720. Its totient is φ = 56517552.

The previous prime is 71432531. The next prime is 71432561. The reversal of 71432543 is 34523417.

It is a happy number.

It is not a de Polignac number, because 71432543 - 2¹⁰ = 71431519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71432563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55433 + ... + 56706.

It is an arithmetic number, because the mean of its divisors is an integer number (7457310).

Almost surely, 2^71432543 is an apocalyptic number.

71432543 is a deficient number, since it is larger than the sum of its proper divisors (18055177).

71432543 is a wasteful number, since it uses less digits than its factorization.

71432543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112166 (or 112159 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 71432543 is about 8451.7775053535. Note that the first 3 decimals coincide. The cubic root of 71432543 is about 414.9209565431.

The spelling of 71432543 in words is "seventy-one million, four hundred thirty-two thousand, five hundred forty-three".