109163779 has 2 divisors, whose sum is σ = 109163780. Its totient is φ = 109163778.

The previous prime is 109163767. The next prime is 109163843. The reversal of 109163779 is 977361901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109163779 - 2⁷ = 109163651 is a prime.

It is not a weakly prime, because it can be changed into another prime (109163179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54581889 + 54581890.

It is an arithmetic number, because the mean of its divisors is an integer number (54581890).

Almost surely, 2^109163779 is an apocalyptic number.

109163779 is a deficient number, since it is larger than the sum of its proper divisors (1).

109163779 is an equidigital number, since it uses as much as digits as its factorization.

109163779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 109163779 is about 10448.1471563144. The cubic root of 109163779 is about 477.9247487498.

The spelling of 109163779 in words is "one hundred nine million, one hundred sixty-three thousand, seven hundred seventy-nine".