160121 has 8 divisors (see below), whose sum is σ = 175560. Its totient is φ = 145152.

The previous prime is 160117. The next prime is 160141. The reversal of 160121 is 121061.

It can be written as a sum of positive squares in 4 ways, for example, as 121 + 160000 = 11^2 + 400^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 160121 - 2² = 160117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361 + ... + 1473.

It is an arithmetic number, because the mean of its divisors is an integer number (21945).

2¹⁶⁰¹²¹ is an apocalyptic number.

It is an amenable number.

160121 is a deficient number, since it is larger than the sum of its proper divisors (15439).

160121 is a wasteful number, since it uses less digits than its factorization.

160121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 160121 is about 400.1512214151. The cubic root of 160121 is about 54.3020340724.

Adding to 160121 its reverse (121061), we get a palindrome (281182).

Subtracting from 160121 its reverse (121061), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 160121 in words is "one hundred sixty thousand, one hundred twenty-one".