8318081 has 4 divisors (see below), whose sum is σ = 8542932. Its totient is φ = 8093232.

The previous prime is 8318077. The next prime is 8318113. The reversal of 8318081 is 1808138.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1808138 = 2 ⋅904069.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 919681 = 2720^2 + 959^2 .

It is not a de Polignac number, because 8318081 - 2² = 8318077 is a prime.

It is a super-2 number, since 2×8318081² = 138380943045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8318071) by changing a digit.

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, 112370 + ... + 112443.

It is an arithmetic number, because the mean of its divisors is an integer number (2135733).

Almost surely, 2^8318081 is an apocalyptic number.

It is an amenable number.

8318081 is a deficient number, since it is larger than the sum of its proper divisors (224851).

8318081 is a wasteful number, since it uses less digits than its factorization.

8318081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224850.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 8318081 is about 2884.1083544139. The cubic root of 8318081 is about 202.6163006166.

The spelling of 8318081 in words is "eight million, three hundred eighteen thousand, eighty-one".