108971081 has 4 divisors (see below), whose sum is σ = 109535892. Its totient is φ = 108406272.

The previous prime is 108971069. The next prime is 108971111. The reversal of 108971081 is 180179801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62663056 + 46308025 = 7916^2 + 6805^2 .

It is a cyclic number.

It is not a de Polignac number, because 108971081 - 2⁶ = 108971017 is a prime.

It is a super-2 number, since 2×108971081² = 23749392988617122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108971381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282116 + ... + 282501.

It is an arithmetic number, because the mean of its divisors is an integer number (27383973).

Almost surely, 2^108971081 is an apocalyptic number.

It is an amenable number.

108971081 is a deficient number, since it is larger than the sum of its proper divisors (564811).

108971081 is an equidigital number, since it uses as much as digits as its factorization.

108971081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564810.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 108971081 is about 10438.9214481191. The cubic root of 108971081 is about 477.6433691363.

The spelling of 108971081 in words is "one hundred eight million, nine hundred seventy-one thousand, eighty-one".