109090019 has 2 divisors, whose sum is σ = 109090020. Its totient is φ = 109090018.

The previous prime is 109089977. The next prime is 109090027. The reversal of 109090019 is 910090901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109090019 - 2⁸ = 109089763 is a prime.

It is a super-2 number, since 2×109090019² = 23801264490840722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 109089973 and 109090000.

It is not a weakly prime, because it can be changed into another prime (109090049) 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, 54545009 + 54545010.

It is an arithmetic number, because the mean of its divisors is an integer number (54545010).

Almost surely, 2^109090019 is an apocalyptic number.

109090019 is a deficient number, since it is larger than the sum of its proper divisors (1).

109090019 is an equidigital number, since it uses as much as digits as its factorization.

109090019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 109090019 is about 10444.6167473967. The cubic root of 109090019 is about 477.8170827809.

The spelling of 109090019 in words is "one hundred nine million, ninety thousand, nineteen".