108159979 has 2 divisors, whose sum is σ = 108159980. Its totient is φ = 108159978.

The previous prime is 108159977. The next prime is 108160037. The reversal of 108159979 is 979951801.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (979951801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108159979 - 2¹ = 108159977 is a prime.

Together with 108159977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (108159971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54079989 + 54079990.

It is an arithmetic number, because the mean of its divisors is an integer number (54079990).

Almost surely, 2^108159979 is an apocalyptic number.

108159979 is a deficient number, since it is larger than the sum of its proper divisors (1).

108159979 is an equidigital number, since it uses as much as digits as its factorization.

108159979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 49.

The square root of 108159979 is about 10399.9989903846. The cubic root of 108159979 is about 476.4553392429.

The spelling of 108159979 in words is "one hundred eight million, one hundred fifty-nine thousand, nine hundred seventy-nine".