1122765 has 48 divisors (see below), whose sum is σ = 2239872. Its totient is φ = 470016.

The previous prime is 1122761. The next prime is 1122811. The reversal of 1122765 is 5672211.

It is not a de Polignac number, because 1122765 - 2² = 1122761 is a prime.

1122765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30327 + ... + 30363.

It is an arithmetic number, because the mean of its divisors is an integer number (46664).

2^1122765 is an apocalyptic number.

1122765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122765 is a deficient number, since it is larger than the sum of its proper divisors (1117107).

1122765 is a wasteful number, since it uses less digits than its factorization.

1122765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 69 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 1122765 is about 1059.6060588728. The cubic root of 1122765 is about 103.9352716058.

Adding to 1122765 its reverse (5672211), we get a palindrome (6794976).

The spelling of 1122765 in words is "one million, one hundred twenty-two thousand, seven hundred sixty-five".