8556123 has 4 divisors (see below), whose sum is σ = 11408168. Its totient is φ = 5704080.

The previous prime is 8556091. The next prime is 8556133. The reversal of 8556123 is 3216558.

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

It is not a de Polignac number, because 8556123 - 2⁵ = 8556091 is a prime.

It is a super-2 number, since 2×8556123² = 146414481582258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8556133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426018 + ... + 1426023.

It is an arithmetic number, because the mean of its divisors is an integer number (2852042).

Almost surely, 2^8556123 is an apocalyptic number.

8556123 is a deficient number, since it is larger than the sum of its proper divisors (2852045).

8556123 is a wasteful number, since it uses less digits than its factorization.

8556123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852044.

The product of its digits is 7200, while the sum is 30.

The square root of 8556123 is about 2925.0851269664. The cubic root of 8556123 is about 204.5309362715.

The spelling of 8556123 in words is "eight million, five hundred fifty-six thousand, one hundred twenty-three".