1326311265 has 8 divisors (see below), whose sum is σ = 2122098048. Its totient is φ = 707366000.

The previous prime is 1326311257. The next prime is 1326311267. The reversal of 1326311265 is 5621136231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1326311265 - 2³ = 1326311257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1326311267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44210361 + ... + 44210390.

It is an arithmetic number, because the mean of its divisors is an integer number (265262256).

Almost surely, 2^1326311265 is an apocalyptic number.

1326311265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1326311265 is a deficient number, since it is larger than the sum of its proper divisors (795786783).

1326311265 is an equidigital number, since it uses as much as digits as its factorization.

1326311265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88420759.

The product of its digits is 6480, while the sum is 30.

The square root of 1326311265 is about 36418.5566023696. The cubic root of 1326311265 is about 1098.7068177702.

Adding to 1326311265 its reverse (5621136231), we get a palindrome (6947447496).

The spelling of 1326311265 in words is "one billion, three hundred twenty-six million, three hundred eleven thousand, two hundred sixty-five".