1326000065 has 16 divisors (see below), whose sum is σ = 1755398736. Its totient is φ = 955315200.

The previous prime is 1326000041. The next prime is 1326000077. The reversal of 1326000065 is 5600006231.

It can be written as a sum of positive squares in 8 ways, for example, as 627402304 + 698597761 = 25048^2 + 26431^2 .

It is not a de Polignac number, because 1326000065 - 2¹⁸ = 1325737921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1326000065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246116 + ... + 251445.

It is an arithmetic number, because the mean of its divisors is an integer number (109712421).

Almost surely, 2^1326000065 is an apocalyptic number.

It is an amenable number.

1326000065 is a deficient number, since it is larger than the sum of its proper divisors (429398671).

1326000065 is a wasteful number, since it uses less digits than its factorization.

1326000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497620.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1326000065 is about 36414.2838045732. The cubic root of 1326000065 is about 1098.6208790929.

Adding to 1326000065 its reverse (5600006231), we get a palindrome (6926006296).

The spelling of 1326000065 in words is "one billion, three hundred twenty-six million, sixty-five", and thus it is an aban number.