8271320136 has 16 divisors (see below), whose sum is σ = 20678300400. Its totient is φ = 2757106704.

The previous prime is 8271320117. The next prime is 8271320147. The reversal of 8271320136 is 6310231728.

It is a junction number, because it is equal to n+sod(n) for n = 8271320097 and 8271320106.

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, 172319146 + ... + 172319193.

It is an arithmetic number, because the mean of its divisors is an integer number (1292393775).

Almost surely, 2^8271320136 is an apocalyptic number.

It is an amenable number.

8271320136 is an abundant number, since it is smaller than the sum of its proper divisors (12406980264).

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

8271320136 is a wasteful number, since it uses less digits than its factorization.

8271320136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344638348 (or 344638344 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 8271320136 is about 90946.7983823510. The cubic root of 8271320136 is about 2022.3591148260.

The spelling of 8271320136 in words is "eight billion, two hundred seventy-one million, three hundred twenty thousand, one hundred thirty-six".