109894019 has 2 divisors, whose sum is σ = 109894020. Its totient is φ = 109894018.

The previous prime is 109893983. The next prime is 109894061. The reversal of 109894019 is 910498901.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109894019 is a prime.

It is a super-2 number, since 2×109894019² = 24153390823944722, which contains 22 as substring.

It is equal to p_6297557 and since 109894019 and 6297557 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (109824019) 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, 54947009 + 54947010.

It is an arithmetic number, because the mean of its divisors is an integer number (54947010).

Almost surely, 2^109894019 is an apocalyptic number.

109894019 is a deficient number, since it is larger than the sum of its proper divisors (1).

109894019 is an equidigital number, since it uses as much as digits as its factorization.

109894019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 109894019 is about 10483.0348182194. The cubic root of 109894019 is about 478.9880576344.

The spelling of 109894019 in words is "one hundred nine million, eight hundred ninety-four thousand, nineteen".