1326434531 has 2 divisors, whose sum is σ = 1326434532. Its totient is φ = 1326434530.

The previous prime is 1326434491. The next prime is 1326434563. The reversal of 1326434531 is 1354346231.

It is an a-pointer prime, because the next prime (1326434563) can be obtained adding 1326434531 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1326434531 - 2⁶ = 1326434467 is a prime.

It is a super-2 number, since 2×1326434531² = 3518857130058379922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1326439531) 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, 663217265 + 663217266.

It is an arithmetic number, because the mean of its divisors is an integer number (663217266).

Almost surely, 2^1326434531 is an apocalyptic number.

1326434531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326434531 is an equidigital number, since it uses as much as digits as its factorization.

1326434531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 1326434531 is about 36420.2489145805. The cubic root of 1326434531 is about 1098.7408542749.

The spelling of 1326434531 in words is "one billion, three hundred twenty-six million, four hundred thirty-four thousand, five hundred thirty-one".