161230 has 16 divisors (see below), whose sum is σ = 303264. Its totient is φ = 61600.

The previous prime is 161221. The next prime is 161233. The reversal of 161230 is 32161.

It is a super-2 number, since 2×161230² = 51990225800, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 161230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161233) by changing a digit.

161230 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 121 + ... + 580.

It is an arithmetic number, because the mean of its divisors is an integer number (18954).

2¹⁶¹²³⁰ is an apocalyptic number.

161230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161230 is a deficient number, since it is larger than the sum of its proper divisors (142034).

161230 is a wasteful number, since it uses less digits than its factorization.

161230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 161230 is about 401.5345564207. The cubic root of 161230 is about 54.4271112701.

Adding to 161230 its reverse (32161), we get a palindrome (193391).

The spelling of 161230 in words is "one hundred sixty-one thousand, two hundred thirty".