112991393 has 2 divisors, whose sum is σ = 112991394. Its totient is φ = 112991392.

The previous prime is 112991381. The next prime is 112991407. The reversal of 112991393 is 393199211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83484769 + 29506624 = 9137^2 + 5432^2 .

It is an emirp because it is prime and its reverse (393199211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112991393 - 2¹² = 112987297 is a prime.

It is not a weakly prime, because it can be changed into another prime (112991353) 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, 56495696 + 56495697.

It is an arithmetic number, because the mean of its divisors is an integer number (56495697).

Almost surely, 2^112991393 is an apocalyptic number.

It is an amenable number.

112991393 is a deficient number, since it is larger than the sum of its proper divisors (1).

112991393 is an equidigital number, since it uses as much as digits as its factorization.

112991393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13122, while the sum is 38.

The square root of 112991393 is about 10629.7409657997. The cubic root of 112991393 is about 483.4465376797.

The spelling of 112991393 in words is "one hundred twelve million, nine hundred ninety-one thousand, three hundred ninety-three".