160442729 has 2 divisors, whose sum is σ = 160442730. Its totient is φ = 160442728.

The previous prime is 160442663. The next prime is 160442731. The reversal of 160442729 is 927244061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127690000 + 32752729 = 11300^2 + 5723^2 .

It is a cyclic number.

It is not a de Polignac number, because 160442729 - 2⁸ = 160442473 is a prime.

It is a Sophie Germain prime.

Together with 160442731, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (160442129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80221364 + 80221365.

It is an arithmetic number, because the mean of its divisors is an integer number (80221365).

Almost surely, 2^160442729 is an apocalyptic number.

It is an amenable number.

160442729 is a deficient number, since it is larger than the sum of its proper divisors (1).

160442729 is an equidigital number, since it uses as much as digits as its factorization.

160442729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 160442729 is about 12666.5989515734. The cubic root of 160442729 is about 543.3837919273.

The spelling of 160442729 in words is "one hundred sixty million, four hundred forty-two thousand, seven hundred twenty-nine".