8182805140 has 48 divisors (see below), whose sum is σ = 17469329472. Its totient is φ = 3218916096.

The previous prime is 8182805131. The next prime is 8182805161. The reversal of 8182805140 is 415082818.

It is a happy number.

It is a super-3 number, since 3×8182805140³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8182805140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856872 + ... + 866368.

It is an arithmetic number, because the mean of its divisors is an integer number (363944364).

Almost surely, 2^8182805140 is an apocalyptic number.

It is an amenable number.

8182805140 is an abundant number, since it is smaller than the sum of its proper divisors (9286524332).

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

8182805140 is a wasteful number, since it uses less digits than its factorization.

8182805140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10216 (or 10214 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The square root of 8182805140 is about 90458.8588254351. The cubic root of 8182805140 is about 2015.1191788745.

Adding to 8182805140 its reverse (415082818), we get a palindrome (8597887958).

The spelling of 8182805140 in words is "eight billion, one hundred eighty-two million, eight hundred five thousand, one hundred forty".