1120765 has 4 divisors (see below), whose sum is σ = 1344924. Its totient is φ = 896608.

The previous prime is 1120747. The next prime is 1120771. The reversal of 1120765 is 5670211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5670211 = 761 ⋅7451.

It can be written as a sum of positive squares in 2 ways, for example, as 822649 + 298116 = 907^2 + 546^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120765 - 2¹¹ = 1118717 is a prime.

It is a super-2 number, since 2×1120765² = 2512228370450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112072 + ... + 112081.

It is an arithmetic number, because the mean of its divisors is an integer number (336231).

2^1120765 is an apocalyptic number.

It is an amenable number.

1120765 is a deficient number, since it is larger than the sum of its proper divisors (224159).

1120765 is an equidigital number, since it uses as much as digits as its factorization.

1120765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224158.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1120765 is about 1058.6618912571. The cubic root of 1120765 is about 103.8735210485.

Adding to 1120765 its reverse (5670211), we get a palindrome (6790976).

The spelling of 1120765 in words is "one million, one hundred twenty thousand, seven hundred sixty-five".