1120681 has 4 divisors (see below), whose sum is σ = 1156864. Its totient is φ = 1084500.

The previous prime is 1120673. The next prime is 1120687. The reversal of 1120681 is 1860211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1120681 - 2³ = 1120673 is a prime.

It is a super-2 number, since 2×1120681² = 2511851807522, which contains 22 as substring.

It is a Duffinian number.

1120681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1120687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18045 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (289216).

2^1120681 is an apocalyptic number.

It is an amenable number.

1120681 is a deficient number, since it is larger than the sum of its proper divisors (36183).

1120681 is an equidigital number, since it uses as much as digits as its factorization.

1120681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36182.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1120681 is about 1058.6222177907. The cubic root of 1120681 is about 103.8709259182.

Adding to 1120681 its reverse (1860211), we get a palindrome (2980892).

The spelling of 1120681 in words is "one million, one hundred twenty thousand, six hundred eighty-one".