8131081 has 8 divisors (see below), whose sum is σ = 9314624. Its totient is φ = 6953040.

The previous prime is 8131051. The next prime is 8131091. The reversal of 8131081 is 1801318.

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

It is a cyclic number.

It is not a de Polignac number, because 8131081 - 2¹⁷ = 8000009 is a prime.

It is a super-2 number, since 2×8131081² = 132228956457122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8131051) 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, 2551 + ... + 4771.

It is an arithmetic number, because the mean of its divisors is an integer number (1164328).

Almost surely, 2^8131081 is an apocalyptic number.

It is an amenable number.

8131081 is a deficient number, since it is larger than the sum of its proper divisors (1183543).

8131081 is a wasteful number, since it uses less digits than its factorization.

8131081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751.

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

The square root of 8131081 is about 2851.5050412019. The cubic root of 8131081 is about 201.0864293369.

Adding to 8131081 its reverse (1801318), we get a palindrome (9932399).

The spelling of 8131081 in words is "eight million, one hundred thirty-one thousand, eighty-one".