1328265 has 16 divisors (see below), whose sum is σ = 2361600. Its totient is φ = 708336.

The previous prime is 1328237. The next prime is 1328269. The reversal of 1328265 is 5628231.

It is not a de Polignac number, because 1328265 - 2¹⁷ = 1197193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4785 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (147600).

2^1328265 is an apocalyptic number.

1328265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1328265 is a deficient number, since it is larger than the sum of its proper divisors (1033335).

1328265 is an equidigital number, since it uses as much as digits as its factorization.

1328265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9853 (or 9847 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1328265 is about 1152.5037960892. The cubic root of 1328265 is about 109.9246039814.

The spelling of 1328265 in words is "one million, three hundred twenty-eight thousand, two hundred sixty-five".