110809081 has 2 divisors, whose sum is σ = 110809082. Its totient is φ = 110809080.

The previous prime is 110809079. The next prime is 110809099. The reversal of 110809081 is 180908011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86955625 + 23853456 = 9325^2 + 4884^2 .

It is a cyclic number.

It is not a de Polignac number, because 110809081 - 2¹ = 110809079 is a prime.

It is a super-2 number, since 2×110809081² = 24557304864129122, which contains 22 as substring.

Together with 110809079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (110809481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55404540 + 55404541.

It is an arithmetic number, because the mean of its divisors is an integer number (55404541).

Almost surely, 2^110809081 is an apocalyptic number.

It is an amenable number.

110809081 is a deficient number, since it is larger than the sum of its proper divisors (1).

110809081 is an equidigital number, since it uses as much as digits as its factorization.

110809081 is an evil number, because the sum of its binary digits is even.

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

The square root of 110809081 is about 10526.5892386851. The cubic root of 110809081 is about 480.3138586785.

The spelling of 110809081 in words is "one hundred ten million, eight hundred nine thousand, eighty-one".