8113081 has 4 divisors (see below), whose sum is σ = 8266212. Its totient is φ = 7959952.

The previous prime is 8113067. The next prime is 8113109. The reversal of 8113081 is 1803118.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7338681 + 774400 = 2709^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 8113081 - 2⁹ = 8112569 is a prime.

It is a super-2 number, since 2×8113081² = 131644166625122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8113681) 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, 76486 + ... + 76591.

It is an arithmetic number, because the mean of its divisors is an integer number (2066553).

Almost surely, 2^8113081 is an apocalyptic number.

It is an amenable number.

8113081 is a deficient number, since it is larger than the sum of its proper divisors (153131).

8113081 is a wasteful number, since it uses less digits than its factorization.

8113081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153130.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 8113081 is about 2848.3470645271. The cubic root of 8113081 is about 200.9379361693.

Adding to 8113081 its reverse (1803118), we get a palindrome (9916199).

The spelling of 8113081 in words is "eight million, one hundred thirteen thousand, eighty-one".