112040009 has 2 divisors, whose sum is σ = 112040010. Its totient is φ = 112040008.

The previous prime is 112039999. The next prime is 112040011. The reversal of 112040009 is 900040211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62647225 + 49392784 = 7915^2 + 7028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112040009 is a prime.

It is a Sophie Germain prime.

Together with 112040011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (112040909) 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, 56020004 + 56020005.

It is an arithmetic number, because the mean of its divisors is an integer number (56020005).

Almost surely, 2^112040009 is an apocalyptic number.

It is an amenable number.

112040009 is a deficient number, since it is larger than the sum of its proper divisors (1).

112040009 is an equidigital number, since it uses as much as digits as its factorization.

112040009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 112040009 is about 10584.8953230535. The cubic root of 112040009 is about 482.0858432530.

The spelling of 112040009 in words is "one hundred twelve million, forty thousand, nine".