160961 has 4 divisors (see below), whose sum is σ = 164052. Its totient is φ = 157872.

The previous prime is 160933. The next prime is 160967. The reversal of 160961 is 169061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169061 = 293 ⋅577.

It can be written as a sum of positive squares in 2 ways, for example, as 126736 + 34225 = 356^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 160961 - 2¹⁰ = 159937 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 160961.

It is not an unprimeable number, because it can be changed into a prime (160967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (41013).

2¹⁶⁰⁹⁶¹ is an apocalyptic number.

It is an amenable number.

160961 is a deficient number, since it is larger than the sum of its proper divisors (3091).

160961 is an equidigital number, since it uses as much as digits as its factorization.

160961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 160961 is about 401.1994516447. The cubic root of 160961 is about 54.3968252545.

Subtracting 160961 from its reverse (169061), we obtain a square (8100 = 90²).

The spelling of 160961 in words is "one hundred sixty thousand, nine hundred sixty-one".