1322265 has 32 divisors (see below), whose sum is σ = 2476800. Its totient is φ = 602112.

The previous prime is 1322261. The next prime is 1322281. The reversal of 1322265 is 5622231.

It is not a de Polignac number, because 1322265 - 2² = 1322261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

1322265 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1322261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5017 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (77400).

2^1322265 is an apocalyptic number.

1322265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1322265 is a deficient number, since it is larger than the sum of its proper divisors (1154535).

1322265 is an equidigital number, since it uses as much as digits as its factorization.

1322265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 272 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 1322265 is about 1149.8978215476. The cubic root of 1322265 is about 109.7588380586.

Adding to 1322265 its reverse (5622231), we get a palindrome (6944496).

It can be divided in two parts, 132226 and 5, that added together give a palindrome (132231).

The spelling of 1322265 in words is "one million, three hundred twenty-two thousand, two hundred sixty-five".