108158789 has 2 divisors, whose sum is σ = 108158790. Its totient is φ = 108158788.

The previous prime is 108158753. The next prime is 108158873. The reversal of 108158789 is 987851801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100841764 + 7317025 = 10042^2 + 2705^2 .

It is an emirp because it is prime and its reverse (987851801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108158789 - 2¹² = 108154693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108158989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54079394 + 54079395.

It is an arithmetic number, because the mean of its divisors is an integer number (54079395).

Almost surely, 2^108158789 is an apocalyptic number.

It is an amenable number.

108158789 is a deficient number, since it is larger than the sum of its proper divisors (1).

108158789 is an equidigital number, since it uses as much as digits as its factorization.

108158789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 47.

The square root of 108158789 is about 10399.9417786832. The cubic root of 108158789 is about 476.4535918808.

The spelling of 108158789 in words is "one hundred eight million, one hundred fifty-eight thousand, seven hundred eighty-nine".