1330943899 has 2 divisors, whose sum is σ = 1330943900. Its totient is φ = 1330943898.

The previous prime is 1330943891. The next prime is 1330943941. The reversal of 1330943899 is 9983490331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1330943899 - 2³ = 1330943891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330943891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665471949 + 665471950.

It is an arithmetic number, because the mean of its divisors is an integer number (665471950).

Almost surely, 2^1330943899 is an apocalyptic number.

1330943899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330943899 is an equidigital number, since it uses as much as digits as its factorization.

1330943899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 1330943899 is about 36482.1038181736. The cubic root of 1330943899 is about 1099.9845449619.

The spelling of 1330943899 in words is "one billion, three hundred thirty million, nine hundred forty-three thousand, eight hundred ninety-nine".