108129289 has 2 divisors, whose sum is σ = 108129290. Its totient is φ = 108129288.

The previous prime is 108129277. The next prime is 108129311. The reversal of 108129289 is 982921801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63680400 + 44448889 = 7980^2 + 6667^2 .

It is a cyclic number.

It is not a de Polignac number, because 108129289 - 2⁵ = 108129257 is a prime.

It is not a weakly prime, because it can be changed into another prime (108129269) 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, 54064644 + 54064645.

It is an arithmetic number, because the mean of its divisors is an integer number (54064645).

Almost surely, 2^108129289 is an apocalyptic number.

It is an amenable number.

108129289 is a deficient number, since it is larger than the sum of its proper divisors (1).

108129289 is an equidigital number, since it uses as much as digits as its factorization.

108129289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 108129289 is about 10398.5234047917. The cubic root of 108129289 is about 476.4102708244.

The spelling of 108129289 in words is "one hundred eight million, one hundred twenty-nine thousand, two hundred eighty-nine".