1326365 has 4 divisors (see below), whose sum is σ = 1591644. Its totient is φ = 1061088.

The previous prime is 1326359. The next prime is 1326383. The reversal of 1326365 is 5636231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5636231 = 17 ⋅331543.

It can be written as a sum of positive squares in 2 ways, for example, as 320356 + 1006009 = 566^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326365 - 2⁴ = 1326349 is a prime.

It is a super-2 number, since 2×1326365² = 3518488226450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132632 + ... + 132641.

It is an arithmetic number, because the mean of its divisors is an integer number (397911).

2^1326365 is an apocalyptic number.

It is an amenable number.

1326365 is a deficient number, since it is larger than the sum of its proper divisors (265279).

1326365 is an equidigital number, since it uses as much as digits as its factorization.

1326365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265278.

The product of its digits is 3240, while the sum is 26.

The square root of 1326365 is about 1151.6792088077. The cubic root of 1326365 is about 109.8721655467.

The spelling of 1326365 in words is "one million, three hundred twenty-six thousand, three hundred sixty-five".