161232 has 20 divisors (see below), whose sum is σ = 416640. Its totient is φ = 53728.

The previous prime is 161221. The next prime is 161233. The reversal of 161232 is 232161.

161232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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

It is a congruent number.

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

161232 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, 1632 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2¹⁶¹²³² is an apocalyptic number.

161232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161232 is an abundant number, since it is smaller than the sum of its proper divisors (255408).

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

161232 is a wasteful number, since it uses less digits than its factorization.

161232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370 (or 3364 counting only the distinct ones).

The product of its digits is 72, while the sum is 15.

The square root of 161232 is about 401.5370468587. The cubic root of 161232 is about 54.4273363187.

Adding to 161232 its reverse (232161), we get a palindrome (393393).

It can be divided in two parts, 161 and 232, that added together give a palindrome (393).

The spelling of 161232 in words is "one hundred sixty-one thousand, two hundred thirty-two".