108180161 has 2 divisors, whose sum is σ = 108180162. Its totient is φ = 108180160.

The previous prime is 108180113. The next prime is 108180169. The reversal of 108180161 is 161081801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101626561 + 6553600 = 10081^2 + 2560^2 .

It is an emirp because it is prime and its reverse (161081801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108180161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 108180161.

It is not a weakly prime, because it can be changed into another prime (108180169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54090080 + 54090081.

It is an arithmetic number, because the mean of its divisors is an integer number (54090081).

Almost surely, 2^108180161 is an apocalyptic number.

It is an amenable number.

108180161 is a deficient number, since it is larger than the sum of its proper divisors (1).

108180161 is an equidigital number, since it uses as much as digits as its factorization.

108180161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 108180161 is about 10400.9692336820. The cubic root of 108180161 is about 476.4849719645.

The spelling of 108180161 in words is "one hundred eight million, one hundred eighty thousand, one hundred sixty-one".