112842689 has 2 divisors, whose sum is σ = 112842690. Its totient is φ = 112842688.

The previous prime is 112842679. The next prime is 112842721. The reversal of 112842689 is 986248211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93412225 + 19430464 = 9665^2 + 4408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112842689 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 (112842649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56421344 + 56421345.

It is an arithmetic number, because the mean of its divisors is an integer number (56421345).

Almost surely, 2^112842689 is an apocalyptic number.

It is an amenable number.

112842689 is a deficient number, since it is larger than the sum of its proper divisors (1).

112842689 is an equidigital number, since it uses as much as digits as its factorization.

112842689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The square root of 112842689 is about 10622.7439487168. The cubic root of 112842689 is about 483.2343622429.

The spelling of 112842689 in words is "one hundred twelve million, eight hundred forty-two thousand, six hundred eighty-nine".