1330287697 has 2 divisors, whose sum is σ = 1330287698. Its totient is φ = 1330287696.

The previous prime is 1330287667. The next prime is 1330287713. The reversal of 1330287697 is 7967820331.

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., 883218961 + 447068736 = 29719^2 + 21144^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330287697 - 2¹⁵ = 1330254929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330287667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665143848 + 665143849.

It is an arithmetic number, because the mean of its divisors is an integer number (665143849).

Almost surely, 2^1330287697 is an apocalyptic number.

It is an amenable number.

1330287697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330287697 is an equidigital number, since it uses as much as digits as its factorization.

1330287697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1330287697 is about 36473.1092313227. The cubic root of 1330287697 is about 1099.8037382633.

The spelling of 1330287697 in words is "one billion, three hundred thirty million, two hundred eighty-seven thousand, six hundred ninety-seven".