161418 has 8 divisors (see below), whose sum is σ = 322848. Its totient is φ = 53804.

The previous prime is 161411. The next prime is 161453. The reversal of 161418 is 814161.

161418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

161418 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 161394 and 161403.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161418.

It is not an unprimeable number, because it can be changed into a prime (161411) by changing a digit.

161418 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 in 3 ways as a sum of consecutive naturals, for example, 13446 + ... + 13457.

It is an arithmetic number, because the mean of its divisors is an integer number (40356).

2¹⁶¹⁴¹⁸ is an apocalyptic number.

161418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161418 is a wasteful number, since it uses less digits than its factorization.

161418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26908.

The product of its digits is 192, while the sum is 21.

The square root of 161418 is about 401.7685901113. The cubic root of 161418 is about 54.4482577118.

Adding to 161418 its reverse (814161), we get a palindrome (975579).

The spelling of 161418 in words is "one hundred sixty-one thousand, four hundred eighteen".