112168409 has 2 divisors, whose sum is σ = 112168410. Its totient is φ = 112168408.

The previous prime is 112168361. The next prime is 112168411. The reversal of 112168409 is 904861211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111408025 + 760384 = 10555^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 112168409 - 2¹⁶ = 112102873 is a prime.

Together with 112168411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112168439) 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, 56084204 + 56084205.

It is an arithmetic number, because the mean of its divisors is an integer number (56084205).

Almost surely, 2^112168409 is an apocalyptic number.

It is an amenable number.

112168409 is a deficient number, since it is larger than the sum of its proper divisors (1).

112168409 is an equidigital number, since it uses as much as digits as its factorization.

112168409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 112168409 is about 10590.9588328914. The cubic root of 112168409 is about 482.2699328228.

The spelling of 112168409 in words is "one hundred twelve million, one hundred sixty-eight thousand, four hundred nine".