161384 has 8 divisors (see below), whose sum is σ = 302610. Its totient is φ = 80688.

The previous prime is 161377. The next prime is 161387. The reversal of 161384 is 483161.

161384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 77284 = 290^2 + 278^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (161387) by changing a digit.

161384 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10079 + ... + 10094.

2¹⁶¹³⁸⁴ is an apocalyptic number.

It is an amenable number.

161384 is a deficient number, since it is larger than the sum of its proper divisors (141226).

161384 is a wasteful number, since it uses less digits than its factorization.

161384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20179 (or 20175 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 161384 is about 401.7262749684. The cubic root of 161384 is about 54.4444345720. Note that the first 4 decimals are identical.

It can be divided in two parts, 161 and 384, that added together give a palindrome (545).

The spelling of 161384 in words is "one hundred sixty-one thousand, three hundred eighty-four".