8564145 has 16 divisors (see below), whose sum is σ = 13936320. Its totient is φ = 4489664.

The previous prime is 8564123. The next prime is 8564147. The reversal of 8564145 is 5414658.

It is not a de Polignac number, because 8564145 - 2⁵ = 8564113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8564147) 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 15 ways as a sum of consecutive naturals, for example, 3954 + ... + 5723.

It is an arithmetic number, because the mean of its divisors is an integer number (871020).

Almost surely, 2^8564145 is an apocalyptic number.

It is an amenable number.

8564145 is a deficient number, since it is larger than the sum of its proper divisors (5372175).

8564145 is a wasteful number, since it uses less digits than its factorization.

8564145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744.

The product of its digits is 19200, while the sum is 33.

The square root of 8564145 is about 2926.4560478504. The cubic root of 8564145 is about 204.5948372799.

The spelling of 8564145 in words is "eight million, five hundred sixty-four thousand, one hundred forty-five".