1326120529 has 2 divisors, whose sum is σ = 1326120530. Its totient is φ = 1326120528.

The previous prime is 1326120527. The next prime is 1326120533. The reversal of 1326120529 is 9250216231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013785600 + 312334929 = 31840^2 + 17673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326120529 - 2¹ = 1326120527 is a prime.

Together with 1326120527, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1326120529.

It is not a weakly prime, because it can be changed into another prime (1326120527) 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 as a sum of consecutive naturals, namely, 663060264 + 663060265.

It is an arithmetic number, because the mean of its divisors is an integer number (663060265).

Almost surely, 2^1326120529 is an apocalyptic number.

It is an amenable number.

1326120529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326120529 is an equidigital number, since it uses as much as digits as its factorization.

1326120529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1326120529 is about 36415.9378432027. The cubic root of 1326120529 is about 1098.6541471300.

The spelling of 1326120529 in words is "one billion, three hundred twenty-six million, one hundred twenty thousand, five hundred twenty-nine".