112990985 has 4 divisors (see below), whose sum is σ = 135589188. Its totient is φ = 90392784.

The previous prime is 112990979. The next prime is 112990987. The reversal of 112990985 is 589099211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589099211 = 659 ⋅893929.

It can be written as a sum of positive squares in 2 ways, for example, as 34703881 + 78287104 = 5891^2 + 8848^2 .

It is a cyclic number.

It is not a de Polignac number, because 112990985 - 2⁶ = 112990921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112990987) 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 in 3 ways as a sum of consecutive naturals, for example, 11299094 + ... + 11299103.

It is an arithmetic number, because the mean of its divisors is an integer number (33897297).

Almost surely, 2^112990985 is an apocalyptic number.

It is an amenable number.

112990985 is a deficient number, since it is larger than the sum of its proper divisors (22598203).

112990985 is an equidigital number, since it uses as much as digits as its factorization.

112990985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22598202.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 112990985 is about 10629.7217743457. The cubic root of 112990985 is about 483.4459557876.

The spelling of 112990985 in words is "one hundred twelve million, nine hundred ninety thousand, nine hundred eighty-five".