8140566 has 24 divisors (see below), whose sum is σ = 18939960. Its totient is φ = 2325792.

The previous prime is 8140553. The next prime is 8140571. The reversal of 8140566 is 6650418.

It is an Ulam number.

It is a congruent number.

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, 13551 + ... + 14138.

It is an arithmetic number, because the mean of its divisors is an integer number (789165).

Almost surely, 2^8140566 is an apocalyptic number.

8140566 is an abundant number, since it is smaller than the sum of its proper divisors (10799394).

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

8140566 is a wasteful number, since it uses less digits than its factorization.

8140566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27708 (or 27701 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 8140566 is about 2853.1677132619. The cubic root of 8140566 is about 201.1645888351.

The spelling of 8140566 in words is "eight million, one hundred forty thousand, five hundred sixty-six".