1110661 has 8 divisors (see below), whose sum is σ = 1192320. Its totient is φ = 1030848.

The previous prime is 1110643. The next prime is 1110667. The reversal of 1110661 is 1660111.

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

It is a cyclic number.

It is not a de Polignac number, because 1110661 - 2⁷ = 1110533 is a prime.

It is a Duffinian number.

It is a congruent 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, 930 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (149040).

2^1110661 is an apocalyptic number.

It is an amenable number.

1110661 is a deficient number, since it is larger than the sum of its proper divisors (81659).

1110661 is an equidigital number, since it uses as much as digits as its factorization.

1110661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1110661 is about 1053.8790253155. The cubic root of 1110661 is about 103.5604289774.

Adding to 1110661 its reverse (1660111), we get a palindrome (2770772).

It can be divided in two parts, 1110 and 661, that added together give a palindrome (1771).

The spelling of 1110661 in words is "one million, one hundred ten thousand, six hundred sixty-one".