112005109 has 2 divisors, whose sum is σ = 112005110. Its totient is φ = 112005108.

The previous prime is 112005083. The next prime is 112005119. The reversal of 112005109 is 901500211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68840209 + 43164900 = 8297^2 + 6570^2 .

It is a cyclic number.

It is not a de Polignac number, because 112005109 - 2²³ = 103616501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112005119) 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, 56002554 + 56002555.

It is an arithmetic number, because the mean of its divisors is an integer number (56002555).

Almost surely, 2^112005109 is an apocalyptic number.

It is an amenable number.

112005109 is a deficient number, since it is larger than the sum of its proper divisors (1).

112005109 is an equidigital number, since it uses as much as digits as its factorization.

112005109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 112005109 is about 10583.2466190673. The cubic root of 112005109 is about 482.0357821384.

The spelling of 112005109 in words is "one hundred twelve million, five thousand, one hundred nine".