1112239409 has 2 divisors, whose sum is σ = 1112239410. Its totient is φ = 1112239408.

The previous prime is 1112239393. The next prime is 1112239459. The reversal of 1112239409 is 9049322111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1090848784 + 21390625 = 33028^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112239409 - 2⁴ = 1112239393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1112239459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556119704 + 556119705.

It is an arithmetic number, because the mean of its divisors is an integer number (556119705).

Almost surely, 2^1112239409 is an apocalyptic number.

It is an amenable number.

1112239409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112239409 is an equidigital number, since it uses as much as digits as its factorization.

1112239409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1112239409 is about 33350.2535072824. The cubic root of 1112239409 is about 1036.0946384354.

The spelling of 1112239409 in words is "one billion, one hundred twelve million, two hundred thirty-nine thousand, four hundred nine".