1178660513 has 2 divisors, whose sum is σ = 1178660514. Its totient is φ = 1178660512.

The previous prime is 1178660467. The next prime is 1178660521. The reversal of 1178660513 is 3150668711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1136566369 + 42094144 = 33713^2 + 6488^2 .

It is a cyclic number.

It is not a de Polignac number, because 1178660513 - 2¹² = 1178656417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1178660113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589330256 + 589330257.

It is an arithmetic number, because the mean of its divisors is an integer number (589330257).

Almost surely, 2^1178660513 is an apocalyptic number.

It is an amenable number.

1178660513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178660513 is an equidigital number, since it uses as much as digits as its factorization.

1178660513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1178660513 is about 34331.6255513776. The cubic root of 1178660513 is about 1056.3218049618.

The spelling of 1178660513 in words is "one billion, one hundred seventy-eight million, six hundred sixty thousand, five hundred thirteen".