71579453 has 16 divisors (see below), whose sum is σ = 81120960. Its totient is φ = 62563200.

The previous prime is 71579447. The next prime is 71579467. The reversal of 71579453 is 35497517.

It is a cyclic number.

It is not a de Polignac number, because 71579453 - 2²⁰ = 70530877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71579453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71579483) 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, 145538 + ... + 146028.

It is an arithmetic number, because the mean of its divisors is an integer number (5070060).

Almost surely, 2^71579453 is an apocalyptic number.

It is an amenable number.

71579453 is a deficient number, since it is larger than the sum of its proper divisors (9541507).

71579453 is a wasteful number, since it uses less digits than its factorization.

71579453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its digits is 132300, while the sum is 41.

The square root of 71579453 is about 8460.4641125650. The cubic root of 71579453 is about 415.2052074598.

The spelling of 71579453 in words is "seventy-one million, five hundred seventy-nine thousand, four hundred fifty-three".