8205156 has 36 divisors (see below), whose sum is σ = 20934732. Its totient is φ = 2709504.

The previous prime is 8205143. The next prime is 8205163. The reversal of 8205156 is 6515028.

It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 5198400 = 1734^2 + 2280^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3060 + ... + 5076.

Almost surely, 2^8205156 is an apocalyptic number.

It is an amenable number.

8205156 is an abundant number, since it is smaller than the sum of its proper divisors (12729576).

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

8205156 is a wasteful number, since it uses less digits than its factorization.

8205156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 8205156 is about 2864.4643478319. The cubic root of 8205156 is about 201.6952238168.

The spelling of 8205156 in words is "eight million, two hundred five thousand, one hundred fifty-six".