112665565 has 4 divisors (see below), whose sum is σ = 135198684. Its totient is φ = 90132448.

The previous prime is 112665557. The next prime is 112665571. The reversal of 112665565 is 565566211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565566211 = 7 ⋅80795173.

It can be written as a sum of positive squares in 2 ways, for example, as 79245604 + 33419961 = 8902^2 + 5781^2 .

It is a cyclic number.

It is not a de Polignac number, because 112665565 - 2³ = 112665557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11266552 + ... + 11266561.

It is an arithmetic number, because the mean of its divisors is an integer number (33799671).

Almost surely, 2^112665565 is an apocalyptic number.

It is an amenable number.

112665565 is a deficient number, since it is larger than the sum of its proper divisors (22533119).

112665565 is an equidigital number, since it uses as much as digits as its factorization.

112665565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22533118.

The product of its digits is 54000, while the sum is 37.

The square root of 112665565 is about 10614.4036572951. The cubic root of 112665565 is about 482.9813928908.

The spelling of 112665565 in words is "one hundred twelve million, six hundred sixty-five thousand, five hundred sixty-five".