161576 has 16 divisors (see below), whose sum is σ = 319200. Its totient is φ = 76464.

The previous prime is 161573. The next prime is 161591. The reversal of 161576 is 675161.

161576 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 2×161576² = 52213607552, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 683.

It is an arithmetic number, because the mean of its divisors is an integer number (19950).

2¹⁶¹⁵⁷⁶ is an apocalyptic number.

It is an amenable number.

161576 is a deficient number, since it is larger than the sum of its proper divisors (157624).

161576 is a wasteful number, since it uses less digits than its factorization.

161576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 1084 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 161576 is about 401.9651726207. The cubic root of 161576 is about 54.4660170269.

It can be divided in two parts, 161 and 576, that added together give a palindrome (737).

The spelling of 161576 in words is "one hundred sixty-one thousand, five hundred seventy-six".