161546 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 62880.

The previous prime is 161543. The next prime is 161561. The reversal of 161546 is 645161.

161546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161546² = 52194220232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹⁶¹⁵⁴⁶ is an apocalyptic number.

161546 is a deficient number, since it is larger than the sum of its proper divisors (140854).

161546 is a wasteful number, since it uses less digits than its factorization.

161546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

The product of its digits is 720, while the sum is 23.

The square root of 161546 is about 401.9278542226. The cubic root of 161546 is about 54.4626458958.

It can be divided in two parts, 1615 and 46, that added together give a palindrome (1661).

The spelling of 161546 in words is "one hundred sixty-one thousand, five hundred forty-six".