1104125665 has 4 divisors (see below), whose sum is σ = 1324950804. Its totient is φ = 883300528.

The previous prime is 1104125609. The next prime is 1104125699. The reversal of 1104125665 is 5665214011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 643078881 + 461046784 = 25359^2 + 21472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1104125665 - 2⁹ = 1104125153 is a prime.

It is a super-2 number, since 2×1104125665² = 2438186968223384450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 110412562 + ... + 110412571.

It is an arithmetic number, because the mean of its divisors is an integer number (331237701).

Almost surely, 2^1104125665 is an apocalyptic number.

It is an amenable number.

1104125665 is a deficient number, since it is larger than the sum of its proper divisors (220825139).

1104125665 is an equidigital number, since it uses as much as digits as its factorization.

1104125665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220825138.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1104125665 is about 33228.3864338911. The cubic root of 1104125665 is about 1033.5690635165.

Adding to 1104125665 its reverse (5665214011), we get a palindrome (6769339676).

The spelling of 1104125665 in words is "one billion, one hundred four million, one hundred twenty-five thousand, six hundred sixty-five".