8081135047 has 4 divisors (see below), whose sum is σ = 8086563760. Its totient is φ = 8075706336.

The previous prime is 8081135017. The next prime is 8081135053. The reversal of 8081135047 is 7405311808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8081135047 - 2²³ = 8072746439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8081134997 and 8081135015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081135017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712123 + ... + 2715100.

It is an arithmetic number, because the mean of its divisors is an integer number (2021640940).

Almost surely, 2^8081135047 is an apocalyptic number.

8081135047 is a deficient number, since it is larger than the sum of its proper divisors (5428713).

8081135047 is a wasteful number, since it uses less digits than its factorization.

8081135047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428712.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 8081135047 is about 89895.1336113363. The cubic root of 8081135047 is about 2006.7385245616.

The spelling of 8081135047 in words is "eight billion, eighty-one million, one hundred thirty-five thousand, forty-seven".