1330785017 has 4 divisors (see below), whose sum is σ = 1330903140. Its totient is φ = 1330666896.

The previous prime is 1330785013. The next prime is 1330785047. The reversal of 1330785017 is 7105870331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 732297721 + 598487296 = 27061^2 + 24464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330785017 - 2² = 1330785013 is a prime.

It is a super-2 number, since 2×1330785017² = 3541977522943380578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330785013) 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 in 3 ways as a sum of consecutive naturals, for example, 40142 + ... + 65367.

It is an arithmetic number, because the mean of its divisors is an integer number (332725785).

Almost surely, 2^1330785017 is an apocalyptic number.

It is an amenable number.

1330785017 is a deficient number, since it is larger than the sum of its proper divisors (118123).

1330785017 is a wasteful number, since it uses less digits than its factorization.

1330785017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118122.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 1330785017 is about 36479.9262197719. The cubic root of 1330785017 is about 1099.9407728442.

The spelling of 1330785017 in words is "one billion, three hundred thirty million, seven hundred eighty-five thousand, seventeen".