8126081331 has 16 divisors (see below), whose sum is σ = 10991592960. Its totient is φ = 5339224800.

The previous prime is 8126081323. The next prime is 8126081333. The reversal of 8126081331 is 1331806218.

It is not a de Polignac number, because 8126081331 - 2³ = 8126081323 is a prime.

It is a super-2 number, since 2×8126081331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8126081292 and 8126081301.

It is not an unprimeable number, because it can be changed into a prime (8126081333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102981 + ... + 163881.

It is an arithmetic number, because the mean of its divisors is an integer number (686974560).

Almost surely, 2^8126081331 is an apocalyptic number.

8126081331 is a deficient number, since it is larger than the sum of its proper divisors (2865511629).

8126081331 is a wasteful number, since it uses less digits than its factorization.

8126081331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61546.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8126081331 is about 90144.7798322232. The cubic root of 8126081331 is about 2010.4520596544.

Adding to 8126081331 its reverse (1331806218), we get a palindrome (9457887549).

The spelling of 8126081331 in words is "eight billion, one hundred twenty-six million, eighty-one thousand, three hundred thirty-one".