112788289 has 2 divisors, whose sum is σ = 112788290. Its totient is φ = 112788288.

The previous prime is 112788287. The next prime is 112788331. The reversal of 112788289 is 982887211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112720689 + 67600 = 10617^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 112788289 - 2¹ = 112788287 is a prime.

Together with 112788287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112788281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56394144 + 56394145.

It is an arithmetic number, because the mean of its divisors is an integer number (56394145).

Almost surely, 2^112788289 is an apocalyptic number.

It is an amenable number.

112788289 is a deficient number, since it is larger than the sum of its proper divisors (1).

112788289 is an equidigital number, since it uses as much as digits as its factorization.

112788289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 46.

The square root of 112788289 is about 10620.1830963501. The cubic root of 112788289 is about 483.1566960835.

The spelling of 112788289 in words is "one hundred twelve million, seven hundred eighty-eight thousand, two hundred eighty-nine".