1326530505 has 16 divisors (see below), whose sum is σ = 2234157120. Its totient is φ = 670246848.

The previous prime is 1326530479. The next prime is 1326530509. The reversal of 1326530505 is 5050356231.

It is not a de Polignac number, because 1326530505 - 2⁵ = 1326530473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1326530509) 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 15 ways as a sum of consecutive naturals, for example, 2326962 + ... + 2327531.

It is an arithmetic number, because the mean of its divisors is an integer number (139634820).

Almost surely, 2^1326530505 is an apocalyptic number.

1326530505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1326530505 is a deficient number, since it is larger than the sum of its proper divisors (907626615).

1326530505 is a wasteful number, since it uses less digits than its factorization.

1326530505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654520.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1326530505 is about 36421.5664819623. The cubic root of 1326530505 is about 1098.7673533869.

Adding to 1326530505 its reverse (5050356231), we get a palindrome (6376886736).

The spelling of 1326530505 in words is "one billion, three hundred twenty-six million, five hundred thirty thousand, five hundred five".