161327 has 4 divisors (see below), whose sum is σ = 166920. Its totient is φ = 155736.

The previous prime is 161323. The next prime is 161333. The reversal of 161327 is 723161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161327 - 2² = 161323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161299 and 161308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2753 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (41730).

2¹⁶¹³²⁷ is an apocalyptic number.

161327 is a deficient number, since it is larger than the sum of its proper divisors (5593).

161327 is an equidigital number, since it uses as much as digits as its factorization.

161327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592.

The product of its digits is 252, while the sum is 20.

The square root of 161327 is about 401.6553248745. The cubic root of 161327 is about 54.4380239857.

Adding to 161327 its reverse (723161), we get a palindrome (884488).

The spelling of 161327 in words is "one hundred sixty-one thousand, three hundred twenty-seven".