1325565 has 24 divisors (see below), whose sum is σ = 2384928. Its totient is φ = 706320.

The previous prime is 1325557. The next prime is 1325567. The reversal of 1325565 is 5655231.

It is not a de Polignac number, because 1325565 - 2³ = 1325557 is a prime.

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

1325565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670 + ... + 1760.

It is an arithmetic number, because the mean of its divisors is an integer number (99372).

2^1325565 is an apocalyptic number.

1325565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325565 is a deficient number, since it is larger than the sum of its proper divisors (1059363).

1325565 is an equidigital number, since it uses as much as digits as its factorization.

1325565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1099 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 1325565 is about 1151.3318374821. The cubic root of 1325565 is about 109.8500712237.

The spelling of 1325565 in words is "one million, three hundred twenty-five thousand, five hundred sixty-five".