109943849 has 2 divisors, whose sum is σ = 109943850. Its totient is φ = 109943848.

The previous prime is 109943839. The next prime is 109943893. The reversal of 109943849 is 948349901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91393600 + 18550249 = 9560^2 + 4307^2 .

It is a cyclic number.

It is not a de Polignac number, because 109943849 - 2⁴ = 109943833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109943809) 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, 54971924 + 54971925.

It is an arithmetic number, because the mean of its divisors is an integer number (54971925).

Almost surely, 2^109943849 is an apocalyptic number.

It is an amenable number.

109943849 is a deficient number, since it is larger than the sum of its proper divisors (1).

109943849 is an equidigital number, since it uses as much as digits as its factorization.

109943849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 109943849 is about 10485.4112461076. The cubic root of 109943849 is about 479.0604436432.

The spelling of 109943849 in words is "one hundred nine million, nine hundred forty-three thousand, eight hundred forty-nine".