1326434563 has 2 divisors, whose sum is σ = 1326434564. Its totient is φ = 1326434562.

The previous prime is 1326434531. The next prime is 1326434597. The reversal of 1326434563 is 3654346231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1326434563 - 2⁵ = 1326434531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1326431563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663217281 + 663217282.

It is an arithmetic number, because the mean of its divisors is an integer number (663217282).

Almost surely, 2^1326434563 is an apocalyptic number.

1326434563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326434563 is an equidigital number, since it uses as much as digits as its factorization.

1326434563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 37.

The square root of 1326434563 is about 36420.2493538965. The cubic root of 1326434563 is about 1098.7408631106.

The spelling of 1326434563 in words is "one billion, three hundred twenty-six million, four hundred thirty-four thousand, five hundred sixty-three".