160938989 has 2 divisors, whose sum is σ = 160938990. Its totient is φ = 160938988.

The previous prime is 160938931. The next prime is 160938991. The reversal of 160938989 is 989839061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 714025 = 12658^2 + 845^2 .

It is an emirp because it is prime and its reverse (989839061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160938989 - 2⁸ = 160938733 is a prime.

Together with 160938991, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 160938989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160938689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80469494 + 80469495.

It is an arithmetic number, because the mean of its divisors is an integer number (80469495).

Almost surely, 2^160938989 is an apocalyptic number.

It is an amenable number.

160938989 is a deficient number, since it is larger than the sum of its proper divisors (1).

160938989 is an equidigital number, since it uses as much as digits as its factorization.

160938989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 160938989 is about 12686.1731424413. The cubic root of 160938989 is about 543.9434559976.

The spelling of 160938989 in words is "one hundred sixty million, nine hundred thirty-eight thousand, nine hundred eighty-nine".