8012565 has 24 divisors (see below), whose sum is σ = 15151968. Its totient is φ = 3884640.

The previous prime is 8012561. The next prime is 8012573. The reversal of 8012565 is 5652108.

It is not a de Polignac number, because 8012565 - 2² = 8012561 is a prime.

It is a Curzon number.

8012565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012561) 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, 7599 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (631332).

Almost surely, 2^8012565 is an apocalyptic number.

It is an amenable number.

8012565 is a deficient number, since it is larger than the sum of its proper divisors (7139403).

8012565 is a wasteful number, since it uses less digits than its factorization.

8012565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16209 (or 16206 counting only the distinct ones).

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

The square root of 8012565 is about 2830.6474524391. The cubic root of 8012565 is about 200.1046535619.

The spelling of 8012565 in words is "eight million, twelve thousand, five hundred sixty-five".