1328330461 has 2 divisors, whose sum is σ = 1328330462. Its totient is φ = 1328330460.

The previous prime is 1328330453. The next prime is 1328330483. The reversal of 1328330461 is 1640338231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1065696025 + 262634436 = 32645^2 + 16206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328330461 - 2³ = 1328330453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328330161) 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, 664165230 + 664165231.

It is an arithmetic number, because the mean of its divisors is an integer number (664165231).

Almost surely, 2^1328330461 is an apocalyptic number.

It is an amenable number.

1328330461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328330461 is an equidigital number, since it uses as much as digits as its factorization.

1328330461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1328330461 is about 36446.2681354347. The cubic root of 1328330461 is about 1099.2640975966.

Adding to 1328330461 its reverse (1640338231), we get a palindrome (2968668692).

The spelling of 1328330461 in words is "one billion, three hundred twenty-eight million, three hundred thirty thousand, four hundred sixty-one".