108161 has 2 divisors, whose sum is σ = 108162. Its totient is φ = 108160.

The previous prime is 108139. The next prime is 108179. The reversal of 108161 is 161801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101761 + 6400 = 319^2 + 80^2 .It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 191801 and 108191.

It is a cyclic number.

It is not a de Polignac number, because 108161 - 2¹⁰ = 107137 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54080 + 54081.

It is an arithmetic number, because the mean of its divisors is an integer number (54081).

2¹⁰⁸¹⁶¹ is an apocalyptic number.

It is an amenable number.

108161 is a deficient number, since it is larger than the sum of its proper divisors (1).

108161 is an equidigital number, since it uses as much as digits as its factorization.

108161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 108161 is about 328.8783969798. The cubic root of 108161 is about 47.6456838440.

Adding to 108161 its reverse (161801), we get a palindrome (269962).

The spelling of 108161 in words is "one hundred eight thousand, one hundred sixty-one".