1330795757 has 4 divisors (see below), whose sum is σ = 1332314076. Its totient is φ = 1329277440.

The previous prime is 1330795721. The next prime is 1330795759. The reversal of 1330795757 is 7575970331.

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 1083331396 + 247464361 = 32914^2 + 15731^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330795757 - 2⁶ = 1330795693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330795759) 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, 757844 + ... + 759597.

It is an arithmetic number, because the mean of its divisors is an integer number (333078519).

Almost surely, 2^1330795757 is an apocalyptic number.

It is an amenable number.

1330795757 is a deficient number, since it is larger than the sum of its proper divisors (1518319).

1330795757 is an equidigital number, since it uses as much as digits as its factorization.

1330795757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518318.

The product of its (nonzero) digits is 694575, while the sum is 47.

The square root of 1330795757 is about 36480.0734237200. The cubic root of 1330795757 is about 1099.9437318325.

The spelling of 1330795757 in words is "one billion, three hundred thirty million, seven hundred ninety-five thousand, seven hundred fifty-seven".