161432 has 16 divisors (see below), whose sum is σ = 320760. Its totient is φ = 75904.

The previous prime is 161411. The next prime is 161453. The reversal of 161432 is 234161.

161432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161411) and next prime (161453).

It is a Harshad number since it is a multiple of its sum of digits (17).

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 161432.

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 161432.

It is an unprimeable number.

161432 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, 458 + ... + 729.

2¹⁶¹⁴³² is an apocalyptic number.

It is an amenable number.

161432 is a deficient number, since it is larger than the sum of its proper divisors (159328).

161432 is a wasteful number, since it uses less digits than its factorization.

161432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1206 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 161432 is about 401.7860126983. The cubic root of 161432 is about 54.4498317898.

Adding to 161432 its reverse (234161), we get a palindrome (395593).

The spelling of 161432 in words is "one hundred sixty-one thousand, four hundred thirty-two".