112390409 has 2 divisors, whose sum is σ = 112390410. Its totient is φ = 112390408.

The previous prime is 112390403. The next prime is 112390441. The reversal of 112390409 is 904093211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104142025 + 8248384 = 10205^2 + 2872^2 .

It is a cyclic number.

It is not a de Polignac number, because 112390409 - 2⁴ = 112390393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112390403) 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, 56195204 + 56195205.

It is an arithmetic number, because the mean of its divisors is an integer number (56195205).

Almost surely, 2^112390409 is an apocalyptic number.

It is an amenable number.

112390409 is a deficient number, since it is larger than the sum of its proper divisors (1).

112390409 is an equidigital number, since it uses as much as digits as its factorization.

112390409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 112390409 is about 10601.4342897553. The cubic root of 112390409 is about 482.5878873792.

The spelling of 112390409 in words is "one hundred twelve million, three hundred ninety thousand, four hundred nine".