1178159 has 2 divisors, whose sum is σ = 1178160. Its totient is φ = 1178158.

The previous prime is 1178141. The next prime is 1178161. The reversal of 1178159 is 9518711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1178159 - 2¹⁶ = 1112623 is a prime.

Together with 1178161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1178189) 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, 589079 + 589080.

It is an arithmetic number, because the mean of its divisors is an integer number (589080).

2^1178159 is an apocalyptic number.

1178159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178159 is an equidigital number, since it uses as much as digits as its factorization.

1178159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 32.

The square root of 1178159 is about 1085.4303294086. The cubic root of 1178159 is about 105.6171964171.

The spelling of 1178159 in words is "one million, one hundred seventy-eight thousand, one hundred fifty-nine".