1112243665 has 8 divisors (see below), whose sum is σ = 1437361128. Its totient is φ = 821349120.

The previous prime is 1112243663. The next prime is 1112243669. The reversal of 1112243665 is 5663422111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41383489 + 1070860176 = 6433^2 + 32724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112243665 - 2¹ = 1112243663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112243663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8555656 + ... + 8555785.

It is an arithmetic number, because the mean of its divisors is an integer number (179670141).

Almost surely, 2^1112243665 is an apocalyptic number.

It is an amenable number.

1112243665 is a deficient number, since it is larger than the sum of its proper divisors (325117463).

1112243665 is a wasteful number, since it uses less digits than its factorization.

1112243665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111459.

The product of its digits is 8640, while the sum is 31.

The square root of 1112243665 is about 33350.3173148323. The cubic root of 1112243665 is about 1036.0959599774.

Adding to 1112243665 its reverse (5663422111), we get a palindrome (6775665776).

The spelling of 1112243665 in words is "one billion, one hundred twelve million, two hundred forty-three thousand, six hundred sixty-five".