10581681 has 8 divisors (see below), whose sum is σ = 15391584. Its totient is φ = 6413120.

The previous prime is 10581671. The next prime is 10581707. The reversal of 10581681 is 18618501.

It is a happy number.

10581681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10581681 - 2⁷ = 10581553 is a prime.

It is a super-2 number, since 2×10581681² = 223943945571522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10581631) 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, 160296 + ... + 160361.

It is an arithmetic number, because the mean of its divisors is an integer number (1923948).

Almost surely, 2^10581681 is an apocalyptic number.

10581681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10581681 is a deficient number, since it is larger than the sum of its proper divisors (4809903).

10581681 is a wasteful number, since it uses less digits than its factorization.

10581681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320671.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 10581681 is about 3252.9495846078. The cubic root of 10581681 is about 219.5423060372.

The spelling of 10581681 in words is "ten million, five hundred eighty-one thousand, six hundred eighty-one".