8556156 has 72 divisors (see below), whose sum is σ = 26033280. Its totient is φ = 2314656.

The previous prime is 8556133. The next prime is 8556157. The reversal of 8556156 is 6516558.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8556156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8556157) 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 23 ways as a sum of consecutive naturals, for example, 3895 + ... + 5681.

Almost surely, 2^8556156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8556156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13016640).

8556156 is an abundant number, since it is smaller than the sum of its proper divisors (17477124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8556156 is a wasteful number, since it uses less digits than its factorization.

8556156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823 (or 1818 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 8556156 is about 2925.0907678224. The cubic root of 8556156 is about 204.5311992220.

The spelling of 8556156 in words is "eight million, five hundred fifty-six thousand, one hundred fifty-six".