8155223 has 8 divisors (see below), whose sum is σ = 8660592. Its totient is φ = 7652736.

The previous prime is 8155193. The next prime is 8155229. The reversal of 8155223 is 3225518.

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 8155223 - 2⁸ = 8154967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8155192 and 8155201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8155229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8861 + ... + 9737.

It is an arithmetic number, because the mean of its divisors is an integer number (1082574).

Almost surely, 2^8155223 is an apocalyptic number.

8155223 is a deficient number, since it is larger than the sum of its proper divisors (505369).

8155223 is a wasteful number, since it uses less digits than its factorization.

8155223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441.

The product of its digits is 2400, while the sum is 26.

The square root of 8155223 is about 2855.7351067632. The cubic root of 8155223 is about 201.2852479958.

The spelling of 8155223 in words is "eight million, one hundred fifty-five thousand, two hundred twenty-three".