71275443 has 4 divisors (see below), whose sum is σ = 95033928. Its totient is φ = 47516960.

The previous prime is 71275423. The next prime is 71275487. The reversal of 71275443 is 34457217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34457217 = 3 ⋅11485739.

It is a cyclic number.

It is not a de Polignac number, because 71275443 - 2⁸ = 71275187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71275423) 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, 11879238 + ... + 11879243.

It is an arithmetic number, because the mean of its divisors is an integer number (23758482).

Almost surely, 2^71275443 is an apocalyptic number.

71275443 is a deficient number, since it is larger than the sum of its proper divisors (23758485).

71275443 is a wasteful number, since it uses less digits than its factorization.

71275443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23758484.

The product of its digits is 23520, while the sum is 33.

The square root of 71275443 is about 8442.4784867952. The cubic root of 71275443 is about 414.6165578103.

The spelling of 71275443 in words is "seventy-one million, two hundred seventy-five thousand, four hundred forty-three".