161846 has 4 divisors (see below), whose sum is σ = 242772. Its totient is φ = 80922.

The previous prime is 161839. The next prime is 161869. The reversal of 161846 is 648161.

161846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 648161 = 181 ⋅3581.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40460 + ... + 40463.

It is an arithmetic number, because the mean of its divisors is an integer number (60693).

2¹⁶¹⁸⁴⁶ is an apocalyptic number.

161846 is a deficient number, since it is larger than the sum of its proper divisors (80926).

161846 is an equidigital number, since it uses as much as digits as its factorization.

161846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80925.

The product of its digits is 1152, while the sum is 26.

The square root of 161846 is about 402.3008824251. The cubic root of 161846 is about 54.4963384460.

The spelling of 161846 in words is "one hundred sixty-one thousand, eight hundred forty-six".