108137779 has 2 divisors, whose sum is σ = 108137780. Its totient is φ = 108137778.

The previous prime is 108137773. The next prime is 108137851. The reversal of 108137779 is 977731801.

It is a weak prime.

It is an emirp because it is prime and its reverse (977731801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108137779 is a prime.

It is not a weakly prime, because it can be changed into another prime (108137773) 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, 54068889 + 54068890.

It is an arithmetic number, because the mean of its divisors is an integer number (54068890).

Almost surely, 2^108137779 is an apocalyptic number.

108137779 is a deficient number, since it is larger than the sum of its proper divisors (1).

108137779 is an equidigital number, since it uses as much as digits as its factorization.

108137779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 43.

The square root of 108137779 is about 10398.9316278164. The cubic root of 108137779 is about 476.4227392850.

The spelling of 108137779 in words is "one hundred eight million, one hundred thirty-seven thousand, seven hundred seventy-nine".