71575072 has 24 divisors (see below), whose sum is σ = 141513372. Its totient is φ = 35635200.

The previous prime is 71575061. The next prime is 71575073. The reversal of 71575072 is 27057517.

It can be written as a sum of positive squares in 2 ways, for example, as 62789776 + 8785296 = 7924^2 + 2964^2 .

It is not an unprimeable number, because it can be changed into a prime (71575073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3072 + ... + 12352.

Almost surely, 2^71575072 is an apocalyptic number.

It is an amenable number.

71575072 is a deficient number, since it is larger than the sum of its proper divisors (69938300).

71575072 is a wasteful number, since it uses less digits than its factorization.

71575072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9532 (or 9524 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 71575072 is about 8460.2051984571. The cubic root of 71575072 is about 415.1967364482.

The spelling of 71575072 in words is "seventy-one million, five hundred seventy-five thousand, seventy-two".