160861 has 2 divisors, whose sum is σ = 160862. Its totient is φ = 160860.

The previous prime is 160841. The next prime is 160877. The reversal of 160861 is 168061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155236 + 5625 = 394^2 + 75^2 .It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 198091 and 190891.

It is a cyclic number.

It is not a de Polignac number, because 160861 - 2⁵ = 160829 is a prime.

It is a super-2 number, since 2×160861² = 51752522642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80430 + 80431.

It is an arithmetic number, because the mean of its divisors is an integer number (80431).

2¹⁶⁰⁸⁶¹ is an apocalyptic number.

It is an amenable number.

160861 is a deficient number, since it is larger than the sum of its proper divisors (1).

160861 is an equidigital number, since it uses as much as digits as its factorization.

160861 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 160861 is about 401.0748059901. The cubic root of 160861 is about 54.3855579093.

The spelling of 160861 in words is "one hundred sixty thousand, eight hundred sixty-one".