71223441 has 8 divisors (see below), whose sum is σ = 95135520. Its totient is φ = 47396832.

The previous prime is 71223413. The next prime is 71223487. The reversal of 71223441 is 14432217.

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 71223441 - 2¹⁵ = 71190673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71223401) 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, 19396 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (11891940).

Almost surely, 2^71223441 is an apocalyptic number.

It is an amenable number.

71223441 is a deficient number, since it is larger than the sum of its proper divisors (23912079).

71223441 is a wasteful number, since it uses less digits than its factorization.

71223441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42735.

The product of its digits is 1344, while the sum is 24.

The square root of 71223441 is about 8439.3981420478. The cubic root of 71223441 is about 414.5156996231.

Adding to 71223441 its reverse (14432217), we get a palindrome (85655658).

The spelling of 71223441 in words is "seventy-one million, two hundred twenty-three thousand, four hundred forty-one".