161444 has 6 divisors (see below), whose sum is σ = 282534. Its totient is φ = 80720.

The previous prime is 161411. The next prime is 161453. The reversal of 161444 is 444161.

It is a happy number.

161444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 160000 + 1444 = 400^2 + 38^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20177 + ... + 20184.

It is an arithmetic number, because the mean of its divisors is an integer number (47089).

2¹⁶¹⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

161444 is a deficient number, since it is larger than the sum of its proper divisors (121090).

161444 is a wasteful number, since it uses less digits than its factorization.

161444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40365 (or 40363 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 161444 is about 401.8009457430. The cubic root of 161444 is about 54.4511809271.

It can be divided in two parts, 16 and 1444, that multiplied together give a square (23104 = 152²).

The spelling of 161444 in words is "one hundred sixty-one thousand, four hundred forty-four".