8118500 has 48 divisors (see below), whose sum is σ = 19110000. Its totient is φ = 2995200.

The previous prime is 8118499. The next prime is 8118511. The reversal of 8118500 is 58118.

It can be written as a sum of positive squares in 8 ways, for example, as 4553956 + 3564544 = 2134^2 + 1888^2 .

It is a plaindrome in base 14.

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 15 ways as a sum of consecutive naturals, for example, 5876 + ... + 7124.

It is an arithmetic number, because the mean of its divisors is an integer number (398125).

Almost surely, 2^8118500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8118500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9555000).

8118500 is an abundant number, since it is smaller than the sum of its proper divisors (10991500).

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

8118500 is a wasteful number, since it uses less digits than its factorization.

8118500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 8118500 is about 2849.2981591964. The cubic root of 8118500 is about 200.9826639504.

It can be divided in two parts, 81 and 18500, that added together give a palindrome (18581).

The spelling of 8118500 in words is "eight million, one hundred eighteen thousand, five hundred".