1330994773 has 2 divisors, whose sum is σ = 1330994774. Its totient is φ = 1330994772.

The previous prime is 1330994741. The next prime is 1330994809. The reversal of 1330994773 is 3774990331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 907334884 + 423659889 = 30122^2 + 20583^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330994773 - 2⁵ = 1330994741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330994573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665497386 + 665497387.

It is an arithmetic number, because the mean of its divisors is an integer number (665497387).

Almost surely, 2^1330994773 is an apocalyptic number.

It is an amenable number.

1330994773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330994773 is an equidigital number, since it uses as much as digits as its factorization.

1330994773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 46.

The square root of 1330994773 is about 36482.8010574846. The cubic root of 1330994773 is about 1099.9985600532.

The spelling of 1330994773 in words is "one billion, three hundred thirty million, nine hundred ninety-four thousand, seven hundred seventy-three".