8281267161 has 8 divisors (see below), whose sum is σ = 11042214624. Its totient is φ = 5520582240.

The previous prime is 8281267157. The next prime is 8281267177. The reversal of 8281267161 is 1617621828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8281267161 - 2² = 8281267157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8281267061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26406 + ... + 131376.

It is an arithmetic number, because the mean of its divisors is an integer number (1380276828).

Almost surely, 2^8281267161 is an apocalyptic number.

It is an amenable number.

8281267161 is a deficient number, since it is larger than the sum of its proper divisors (2760947463).

8281267161 is a wasteful number, since it uses less digits than its factorization.

8281267161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131271.

The product of its digits is 64512, while the sum is 42.

The square root of 8281267161 is about 91001.4679057431. The cubic root of 8281267161 is about 2023.1694811586.

Adding to 8281267161 its reverse (1617621828), we get a palindrome (9898888989).

The spelling of 8281267161 in words is "eight billion, two hundred eighty-one million, two hundred sixty-seven thousand, one hundred sixty-one".