108485681 has 2 divisors, whose sum is σ = 108485682. Its totient is φ = 108485680.

The previous prime is 108485651. The next prime is 108485683. The reversal of 108485681 is 186584801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108472225 + 13456 = 10415^2 + 116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108485681 is a prime.

It is a super-2 number, since 2×108485681² = 23538285964067522, which contains 22 as substring.

Together with 108485683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108485683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54242840 + 54242841.

It is an arithmetic number, because the mean of its divisors is an integer number (54242841).

Almost surely, 2^108485681 is an apocalyptic number.

It is an amenable number.

108485681 is a deficient number, since it is larger than the sum of its proper divisors (1).

108485681 is an equidigital number, since it uses as much as digits as its factorization.

108485681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 108485681 is about 10415.6459713260. The cubic root of 108485681 is about 476.9331097685.

The spelling of 108485681 in words is "one hundred eight million, four hundred eighty-five thousand, six hundred eighty-one".