160397917 has 2 divisors, whose sum is σ = 160397918. Its totient is φ = 160397916.

The previous prime is 160397911. The next prime is 160397921. The reversal of 160397917 is 719793061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118679236 + 41718681 = 10894^2 + 6459^2 .

It is a cyclic number.

It is not a de Polignac number, because 160397917 - 2¹¹ = 160395869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160397911) 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, 80198958 + 80198959.

It is an arithmetic number, because the mean of its divisors is an integer number (80198959).

Almost surely, 2^160397917 is an apocalyptic number.

It is an amenable number.

160397917 is a deficient number, since it is larger than the sum of its proper divisors (1).

160397917 is an equidigital number, since it uses as much as digits as its factorization.

160397917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 160397917 is about 12664.8299238482. The cubic root of 160397917 is about 543.3331977952. Note that the first 3 decimals are identical.

The spelling of 160397917 in words is "one hundred sixty million, three hundred ninety-seven thousand, nine hundred seventeen".