160640317 has 2 divisors, whose sum is σ = 160640318. Its totient is φ = 160640316.

The previous prime is 160640299. The next prime is 160640321. The reversal of 160640317 is 713046061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137030436 + 23609881 = 11706^2 + 4859^2 .

It is a cyclic number.

It is not a de Polignac number, because 160640317 - 2⁷ = 160640189 is a prime.

It is a super-2 number, since 2×160640317² = 51610622891720978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160640377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80320158 + 80320159.

It is an arithmetic number, because the mean of its divisors is an integer number (80320159).

Almost surely, 2^160640317 is an apocalyptic number.

It is an amenable number.

160640317 is a deficient number, since it is larger than the sum of its proper divisors (1).

160640317 is an equidigital number, since it uses as much as digits as its factorization.

160640317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 160640317 is about 12674.3961197368. The cubic root of 160640317 is about 543.6067626057.

Adding to 160640317 its reverse (713046061), we get a palindrome (873686378).

The spelling of 160640317 in words is "one hundred sixty million, six hundred forty thousand, three hundred seventeen".