1328473451 has 2 divisors, whose sum is σ = 1328473452. Its totient is φ = 1328473450.

The previous prime is 1328473409. The next prime is 1328473463. The reversal of 1328473451 is 1543748231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1328473451 - 2¹⁰ = 1328472427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328473481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664236725 + 664236726.

It is an arithmetic number, because the mean of its divisors is an integer number (664236726).

Almost surely, 2^1328473451 is an apocalyptic number.

1328473451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328473451 is an equidigital number, since it uses as much as digits as its factorization.

1328473451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 1328473451 is about 36448.2297375332. The cubic root of 1328473451 is about 1099.3035401245.

The spelling of 1328473451 in words is "one billion, three hundred twenty-eight million, four hundred seventy-three thousand, four hundred fifty-one".