161814 has 16 divisors (see below), whose sum is σ = 327600. Its totient is φ = 53280.

The previous prime is 161807. The next prime is 161831. The reversal of 161814 is 418161.

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

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 161814.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804 + ... + 984.

It is an arithmetic number, because the mean of its divisors is an integer number (20475).

2¹⁶¹⁸¹⁴ is an apocalyptic number.

161814 is an abundant number, since it is smaller than the sum of its proper divisors (165786).

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

161814 is a wasteful number, since it uses less digits than its factorization.

161814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

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

The square root of 161814 is about 402.2611092313. The cubic root of 161814 is about 54.4927465587.

Adding to 161814 its reverse (418161), we get a palindrome (579975).

It can be divided in two parts, 16 and 1814, that added together give a triangular number (1830 = T₆₀).

The spelling of 161814 in words is "one hundred sixty-one thousand, eight hundred fourteen".