160539989 has 2 divisors, whose sum is σ = 160539990. Its totient is φ = 160539988.

The previous prime is 160539971. The next prime is 160539991. The reversal of 160539989 is 989935061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121727089 + 38812900 = 11033^2 + 6230^2 .

It is an emirp because it is prime and its reverse (989935061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160539989 - 2¹⁶ = 160474453 is a prime.

Together with 160539991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160539919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80269994 + 80269995.

It is an arithmetic number, because the mean of its divisors is an integer number (80269995).

Almost surely, 2^160539989 is an apocalyptic number.

It is an amenable number.

160539989 is a deficient number, since it is larger than the sum of its proper divisors (1).

160539989 is an equidigital number, since it uses as much as digits as its factorization.

160539989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 160539989 is about 12670.4376009671. The cubic root of 160539989 is about 543.4935690680.

The spelling of 160539989 in words is "one hundred sixty million, five hundred thirty-nine thousand, nine hundred eighty-nine".