71225823 has 8 divisors (see below), whose sum is σ = 95130288. Its totient is φ = 47402624.

The previous prime is 71225809. The next prime is 71225831. The reversal of 71225823 is 32852217.

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

It is a cyclic number.

It is not a de Polignac number, because 71225823 - 2¹⁰ = 71224799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71225873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18240 + ... + 21797.

It is an arithmetic number, because the mean of its divisors is an integer number (11891286).

Almost surely, 2^71225823 is an apocalyptic number.

71225823 is a deficient number, since it is larger than the sum of its proper divisors (23904465).

71225823 is a wasteful number, since it uses less digits than its factorization.

71225823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40633.

The product of its digits is 6720, while the sum is 30.

The square root of 71225823 is about 8439.5392646755. The cubic root of 71225823 is about 414.5203205989.

The spelling of 71225823 in words is "seventy-one million, two hundred twenty-five thousand, eight hundred twenty-three".