1178456159 has 2 divisors, whose sum is σ = 1178456160. Its totient is φ = 1178456158.

The previous prime is 1178456143. The next prime is 1178456189. The reversal of 1178456159 is 9516548711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1178456159 - 2⁴ = 1178456143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1178456119) 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 as a sum of consecutive naturals, namely, 589228079 + 589228080.

It is an arithmetic number, because the mean of its divisors is an integer number (589228080).

Almost surely, 2^1178456159 is an apocalyptic number.

1178456159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178456159 is an equidigital number, since it uses as much as digits as its factorization.

1178456159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 47.

The square root of 1178456159 is about 34328.6492452004. The cubic root of 1178456159 is about 1056.2607537203.

The spelling of 1178456159 in words is "one billion, one hundred seventy-eight million, four hundred fifty-six thousand, one hundred fifty-nine".