8105540 has 12 divisors (see below), whose sum is σ = 17021676. Its totient is φ = 3242208.

The previous prime is 8105519. The next prime is 8105551. The reversal of 8105540 is 455018.

It can be written as a sum of positive squares in 2 ways, for example, as 3678724 + 4426816 = 1918^2 + 2104^2 .

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 3 ways as a sum of consecutive naturals, for example, 202619 + ... + 202658.

It is an arithmetic number, because the mean of its divisors is an integer number (1418473).

Almost surely, 2^8105540 is an apocalyptic number.

It is an amenable number.

8105540 is an abundant number, since it is smaller than the sum of its proper divisors (8916136).

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

8105540 is a wasteful number, since it uses less digits than its factorization.

8105540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405286 (or 405284 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 8105540 is about 2847.0230065807. The cubic root of 8105540 is about 200.8756604981.

The spelling of 8105540 in words is "eight million, one hundred five thousand, five hundred forty".