160206421 has 2 divisors, whose sum is σ = 160206422. Its totient is φ = 160206420.

The previous prime is 160206413. The next prime is 160206443. The reversal of 160206421 is 124602061.

It is an a-pointer prime, because the next prime (160206443) can be obtained adding 160206421 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 14062500 = 12089^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 160206421 - 2³ = 160206413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 160206392 and 160206401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160206401) 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, 80103210 + 80103211.

It is an arithmetic number, because the mean of its divisors is an integer number (80103211).

Almost surely, 2^160206421 is an apocalyptic number.

It is an amenable number.

160206421 is a deficient number, since it is larger than the sum of its proper divisors (1).

160206421 is an equidigital number, since it uses as much as digits as its factorization.

160206421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 160206421 is about 12657.2675171223. The cubic root of 160206421 is about 543.1168866575.

Adding to 160206421 its reverse (124602061), we get a palindrome (284808482).

The spelling of 160206421 in words is "one hundred sixty million, two hundred six thousand, four hundred twenty-one".