71575223 has 4 divisors (see below), whose sum is σ = 75342360. Its totient is φ = 67808088.

The previous prime is 71575199. The next prime is 71575237. The reversal of 71575223 is 32257517.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71575223 - 2¹² = 71571127 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 71575223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71575243) 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, 1883540 + ... + 1883577.

It is an arithmetic number, because the mean of its divisors is an integer number (18835590).

Almost surely, 2^71575223 is an apocalyptic number.

71575223 is a deficient number, since it is larger than the sum of its proper divisors (3767137).

71575223 is a wasteful number, since it uses less digits than its factorization.

71575223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767136.

The product of its digits is 14700, while the sum is 32.

The square root of 71575223 is about 8460.2141225858. The cubic root of 71575223 is about 415.1970284244.

The spelling of 71575223 in words is "seventy-one million, five hundred seventy-five thousand, two hundred twenty-three".