71264219 has 8 divisors (see below), whose sum is σ = 76816320. Its totient is φ = 65722176.

The previous prime is 71264213. The next prime is 71264233. The reversal of 71264219 is 91246217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71264219 - 2⁴ = 71264203 is a prime.

It is a super-2 number, since 2×71264219² = 10157177819359922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71264213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19214 + ... + 22620.

It is an arithmetic number, because the mean of its divisors is an integer number (9602040).

Almost surely, 2^71264219 is an apocalyptic number.

71264219 is a deficient number, since it is larger than the sum of its proper divisors (5552101).

71264219 is a wasteful number, since it uses less digits than its factorization.

71264219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029.

The product of its digits is 6048, while the sum is 32.

The square root of 71264219 is about 8441.8137269191. The cubic root of 71264219 is about 414.5947929483.

The spelling of 71264219 in words is "seventy-one million, two hundred sixty-four thousand, two hundred nineteen".