1109390179 has 2 divisors, whose sum is σ = 1109390180. Its totient is φ = 1109390178.

The previous prime is 1109390171. The next prime is 1109390291. The reversal of 1109390179 is 9710939011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1109390179 - 2³ = 1109390171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109390171) 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, 554695089 + 554695090.

It is an arithmetic number, because the mean of its divisors is an integer number (554695090).

Almost surely, 2^1109390179 is an apocalyptic number.

1109390179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109390179 is an equidigital number, since it uses as much as digits as its factorization.

1109390179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 40.

The square root of 1109390179 is about 33307.5093484938. The cubic root of 1109390179 is about 1035.2091587218.

The spelling of 1109390179 in words is "one billion, one hundred nine million, three hundred ninety thousand, one hundred seventy-nine".