109019893 has 2 divisors, whose sum is σ = 109019894. Its totient is φ = 109019892.

The previous prime is 109019881. The next prime is 109019909. The reversal of 109019893 is 398910901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72029169 + 36990724 = 8487^2 + 6082^2 .

It is a cyclic number.

It is not a de Polignac number, because 109019893 - 2¹⁷ = 108888821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109019803) 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, 54509946 + 54509947.

It is an arithmetic number, because the mean of its divisors is an integer number (54509947).

Almost surely, 2^109019893 is an apocalyptic number.

It is an amenable number.

109019893 is a deficient number, since it is larger than the sum of its proper divisors (1).

109019893 is an equidigital number, since it uses as much as digits as its factorization.

109019893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 109019893 is about 10441.2591673610. The cubic root of 109019893 is about 477.7146762747.

The spelling of 109019893 in words is "one hundred nine million, nineteen thousand, eight hundred ninety-three".