71040573 has 6 divisors (see below), whose sum is σ = 102614174. Its totient is φ = 47360376.

The previous prime is 71040559. The next prime is 71040589. The reversal of 71040573 is 37504017.

It can be written as a sum of positive squares in only one way, i.e., 71014329 + 26244 = 8427^2 + 162^2 .

It is not a de Polignac number, because 71040573 - 2⁸ = 71040317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71040533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3946690 + ... + 3946707.

Almost surely, 2^71040573 is an apocalyptic number.

It is an amenable number.

71040573 is a deficient number, since it is larger than the sum of its proper divisors (31573601).

71040573 is a wasteful number, since it uses less digits than its factorization.

71040573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893403 (or 7893400 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 71040573 is about 8428.5569939344. The cubic root of 71040573 is about 414.1606356965.

The spelling of 71040573 in words is "seventy-one million, forty thousand, five hundred seventy-three".