1110665 has 8 divisors (see below), whose sum is σ = 1340928. Its totient is φ = 883120.

The previous prime is 1110643. The next prime is 1110667. The reversal of 1110665 is 5660111.

It is a happy number.

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

It is not a de Polignac number, because 1110665 - 2¹² = 1106569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110667) 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, 374 + ... + 1536.

It is an arithmetic number, because the mean of its divisors is an integer number (167616).

2^1110665 is an apocalyptic number.

It is an amenable number.

1110665 is a deficient number, since it is larger than the sum of its proper divisors (230263).

1110665 is a wasteful number, since it uses less digits than its factorization.

1110665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1110665 is about 1053.8809230648. The cubic root of 1110665 is about 103.5605533001.

Adding to 1110665 its reverse (5660111), we get a palindrome (6770776).

The spelling of 1110665 in words is "one million, one hundred ten thousand, six hundred sixty-five".