43108681 has 12 divisors (see below), whose sum is σ = 54706320. Its totient is φ = 33590760.

The previous prime is 43108657. The next prime is 43108691. The reversal of 43108681 is 18680134.

It is not a de Polignac number, because 43108681 - 2¹⁹ = 42584393 is a prime.

It is a super-2 number, since 2×43108681² = 3716716755119522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43108621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39451 + ... + 40528.

It is an arithmetic number, because the mean of its divisors is an integer number (4558860).

Almost surely, 2^43108681 is an apocalyptic number.

It is an amenable number.

43108681 is a deficient number, since it is larger than the sum of its proper divisors (11597639).

43108681 is a wasteful number, since it uses less digits than its factorization.

43108681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80004 (or 79997 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 43108681 is about 6565.7201432897. The cubic root of 43108681 is about 350.6347149336.

The spelling of 43108681 in words is "forty-three million, one hundred eight thousand, six hundred eighty-one".