1330212409 has 2 divisors, whose sum is σ = 1330212410. Its totient is φ = 1330212408.

The previous prime is 1330212307. The next prime is 1330212451. The reversal of 1330212409 is 9042120331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1330206784 + 5625 = 36472^2 + 75^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330212409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330212469) 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, 665106204 + 665106205.

It is an arithmetic number, because the mean of its divisors is an integer number (665106205).

Almost surely, 2^1330212409 is an apocalyptic number.

It is an amenable number.

1330212409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330212409 is an equidigital number, since it uses as much as digits as its factorization.

1330212409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1330212409 is about 36472.0771138689. The cubic root of 1330212409 is about 1099.7829899730.

The spelling of 1330212409 in words is "one billion, three hundred thirty million, two hundred twelve thousand, four hundred nine".