8110981 has 4 divisors (see below), whose sum is σ = 8390700. Its totient is φ = 7831264.

The previous prime is 8110939. The next prime is 8110997. The reversal of 8110981 is 1890118.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1890118 = 2 ⋅945059.

It can be written as a sum of positive squares in 2 ways, for example, as 1562500 + 6548481 = 1250^2 + 2559^2 .

It is a cyclic number.

It is not a de Polignac number, because 8110981 - 2⁹ = 8110469 is a prime.

It is a super-2 number, since 2×8110981² = 131576025564722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8110901) 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, 139816 + ... + 139873.

It is an arithmetic number, because the mean of its divisors is an integer number (2097675).

Almost surely, 2^8110981 is an apocalyptic number.

It is an amenable number.

8110981 is a deficient number, since it is larger than the sum of its proper divisors (279719).

8110981 is a wasteful number, since it uses less digits than its factorization.

8110981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279718.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 8110981 is about 2847.9784058170. The cubic root of 8110981 is about 200.9205976646.

The spelling of 8110981 in words is "eight million, one hundred ten thousand, nine hundred eighty-one".