71043453 has 16 divisors (see below), whose sum is σ = 113346240. Its totient is φ = 43718832.

The previous prime is 71043443. The next prime is 71043473. The reversal of 71043453 is 35434017.

It is not a de Polignac number, because 71043453 - 2⁴ = 71043437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71043403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100851 + ... + 101552.

It is an arithmetic number, because the mean of its divisors is an integer number (7084140).

Almost surely, 2^71043453 is an apocalyptic number.

It is an amenable number.

71043453 is a deficient number, since it is larger than the sum of its proper divisors (42302787).

71043453 is a wasteful number, since it uses less digits than its factorization.

71043453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202425 (or 202419 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 71043453 is about 8428.7278399531. The cubic root of 71043453 is about 414.1662323411.

The spelling of 71043453 in words is "seventy-one million, forty-three thousand, four hundred fifty-three".