161306 has 8 divisors (see below), whose sum is σ = 246240. Its totient is φ = 79228.

The previous prime is 161303. The next prime is 161309. The reversal of 161306 is 603161.

161306 is nontrivially palindromic in base 3.

161306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161303) and next prime (161309).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161303) 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, 566 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2¹⁶¹³⁰⁶ is an apocalyptic number.

161306 is a deficient number, since it is larger than the sum of its proper divisors (84934).

161306 is a wasteful number, since it uses less digits than its factorization.

161306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 161306 is about 401.6291822067. The cubic root of 161306 is about 54.4356618101.

Adding to 161306 its reverse (603161), we get a palindrome (764467).

The spelling of 161306 in words is "one hundred sixty-one thousand, three hundred six".