8205136 has 10 divisors (see below), whose sum is σ = 15897482. Its totient is φ = 4102560.

The previous prime is 8205121. The next prime is 8205137. The reversal of 8205136 is 6315028.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 48400 = 2856^2 + 220^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8205136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8205137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256395 + ... + 256426.

Almost surely, 2^8205136 is an apocalyptic number.

It is an amenable number.

8205136 is a deficient number, since it is larger than the sum of its proper divisors (7692346).

8205136 is a wasteful number, since it uses less digits than its factorization.

8205136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512829 (or 512823 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 8205136 is about 2864.4608567757. The cubic root of 8205136 is about 201.6950599399.

The spelling of 8205136 in words is "eight million, two hundred five thousand, one hundred thirty-six".