160008181 has 2 divisors, whose sum is σ = 160008182. Its totient is φ = 160008180.

The previous prime is 160008151. The next prime is 160008187. The reversal of 160008181 is 181800061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157101156 + 2907025 = 12534^2 + 1705^2 .

It is an emirp because it is prime and its reverse (181800061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160008181 - 2⁹ = 160007669 is a prime.

It is a super-2 number, since 2×160008181² = 51205235973857522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160008187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80004090 + 80004091.

It is an arithmetic number, because the mean of its divisors is an integer number (80004091).

Almost surely, 2^160008181 is an apocalyptic number.

It is an amenable number.

160008181 is a deficient number, since it is larger than the sum of its proper divisors (1).

160008181 is an equidigital number, since it uses as much as digits as its factorization.

160008181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 160008181 is about 12649.4340189591. The cubic root of 160008181 is about 542.8927759323.

The spelling of 160008181 in words is "one hundred sixty million, eight thousand, one hundred eighty-one".