108779147 has 2 divisors, whose sum is σ = 108779148. Its totient is φ = 108779146.

The previous prime is 108779117. The next prime is 108779179. The reversal of 108779147 is 741977801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108779147 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 108779098 and 108779107.

It is not a weakly prime, because it can be changed into another prime (108779117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54389573 + 54389574.

It is an arithmetic number, because the mean of its divisors is an integer number (54389574).

Almost surely, 2^108779147 is an apocalyptic number.

108779147 is a deficient number, since it is larger than the sum of its proper divisors (1).

108779147 is an equidigital number, since it uses as much as digits as its factorization.

108779147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 44.

The square root of 108779147 is about 10429.7242053661. The cubic root of 108779147 is about 477.3627751837.

The spelling of 108779147 in words is "one hundred eight million, seven hundred seventy-nine thousand, one hundred forty-seven".