160997713 has 2 divisors, whose sum is σ = 160997714. Its totient is φ = 160997712.

The previous prime is 160997699. The next prime is 160997731. The reversal of 160997713 is 317799061.

Together with next prime (160997731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137639824 + 23357889 = 11732^2 + 4833^2 .

It is an emirp because it is prime and its reverse (317799061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160997713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 160997713.

It is not a weakly prime, because it can be changed into another prime (160997743) 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, 80498856 + 80498857.

It is an arithmetic number, because the mean of its divisors is an integer number (80498857).

Almost surely, 2^160997713 is an apocalyptic number.

It is an amenable number.

160997713 is a deficient number, since it is larger than the sum of its proper divisors (1).

160997713 is an equidigital number, since it uses as much as digits as its factorization.

160997713 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 160997713 is about 12688.4874197045. The cubic root of 160997713 is about 544.0096066372.

The spelling of 160997713 in words is "one hundred sixty million, nine hundred ninety-seven thousand, seven hundred thirteen".