1168437161 has 2 divisors, whose sum is σ = 1168437162. Its totient is φ = 1168437160.

The previous prime is 1168437143. The next prime is 1168437169. The reversal of 1168437161 is 1617348611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1061521561 + 106915600 = 32581^2 + 10340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1168437161 - 2¹⁴ = 1168420777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1168437169) 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, 584218580 + 584218581.

It is an arithmetic number, because the mean of its divisors is an integer number (584218581).

Almost surely, 2^1168437161 is an apocalyptic number.

It is an amenable number.

1168437161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168437161 is an equidigital number, since it uses as much as digits as its factorization.

1168437161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 1168437161 is about 34182.4101110498. The cubic root of 1168437161 is about 1053.2588580197.

The spelling of 1168437161 in words is "one billion, one hundred sixty-eight million, four hundred thirty-seven thousand, one hundred sixty-one".