1330994573 has 2 divisors, whose sum is σ = 1330994574. Its totient is φ = 1330994572.

The previous prime is 1330994543. The next prime is 1330994591. The reversal of 1330994573 is 3754990331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1183566409 + 147428164 = 34403^2 + 12142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330994573 - 2⁸ = 1330994317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330994503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665497286 + 665497287.

It is an arithmetic number, because the mean of its divisors is an integer number (665497287).

Almost surely, 2^1330994573 is an apocalyptic number.

It is an amenable number.

1330994573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330994573 is an equidigital number, since it uses as much as digits as its factorization.

1330994573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 44.

The square root of 1330994573 is about 36482.7983164669. The cubic root of 1330994573 is about 1099.9985049566.

The spelling of 1330994573 in words is "one billion, three hundred thirty million, nine hundred ninety-four thousand, five hundred seventy-three".