160681 has 2 divisors, whose sum is σ = 160682. Its totient is φ = 160680.

The previous prime is 160669. The next prime is 160687. The reversal of 160681 is 186061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147456 + 13225 = 384^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 160681 - 2⁵ = 160649 is a prime.

It is a super-2 number, since 2×160681² = 51636767522, which contains 22 as substring.

160681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (160687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80340 + 80341.

It is an arithmetic number, because the mean of its divisors is an integer number (80341).

2¹⁶⁰⁶⁸¹ is an apocalyptic number.

It is an amenable number.

160681 is a deficient number, since it is larger than the sum of its proper divisors (1).

160681 is an equidigital number, since it uses as much as digits as its factorization.

160681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 160681 is about 400.8503461393. The cubic root of 160681 is about 54.3652649150.

It can be divided in two parts, 160 and 681, that added together give a square (841 = 29²).

The spelling of 160681 in words is "one hundred sixty thousand, six hundred eighty-one".