108090181 has 2 divisors, whose sum is σ = 108090182. Its totient is φ = 108090180.

The previous prime is 108090167. The next prime is 108090197. The reversal of 108090181 is 181090801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103428900 + 4661281 = 10170^2 + 2159^2 .

It is an emirp because it is prime and its reverse (181090801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108090181 - 2¹³ = 108081989 is a prime.

It is a super-2 number, since 2×108090181² = 23366974457225522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108090581) 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, 54045090 + 54045091.

It is an arithmetic number, because the mean of its divisors is an integer number (54045091).

Almost surely, 2^108090181 is an apocalyptic number.

It is an amenable number.

108090181 is a deficient number, since it is larger than the sum of its proper divisors (1).

108090181 is an equidigital number, since it uses as much as digits as its factorization.

108090181 is an odious number, because the sum of its binary digits is odd.

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

The square root of 108090181 is about 10396.6427754348. The cubic root of 108090181 is about 476.3528281719.

The spelling of 108090181 in words is "one hundred eight million, ninety thousand, one hundred eighty-one".