109000819 has 2 divisors, whose sum is σ = 109000820. Its totient is φ = 109000818.

The previous prime is 109000799. The next prime is 109000847. The reversal of 109000819 is 918000901.

It is an a-pointer prime, because the next prime (109000847) can be obtained adding 109000819 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109000819 is a prime.

It is a super-2 number, since 2×109000819² = 23762357085341522, which contains 22 as substring.

109000819 is a modest number, since divided by 819 gives 109 as remainder.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (109000319) 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, 54500409 + 54500410.

It is an arithmetic number, because the mean of its divisors is an integer number (54500410).

Almost surely, 2^109000819 is an apocalyptic number.

109000819 is a deficient number, since it is larger than the sum of its proper divisors (1).

109000819 is an equidigital number, since it uses as much as digits as its factorization.

109000819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 109000819 is about 10440.3457318233. The cubic root of 109000819 is about 477.6868145058.

The spelling of 109000819 in words is "one hundred nine million, eight hundred nineteen", and thus it is an aban number.