165448 has 8 divisors (see below), whose sum is σ = 310230. Its totient is φ = 82720.

The previous prime is 165443. The next prime is 165449. The reversal of 165448 is 844561.

It can be written as a sum of positive squares in only one way, i.e., 161604 + 3844 = 402^2 + 62^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (165443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10333 + ... + 10348.

2¹⁶⁵⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

165448 is a deficient number, since it is larger than the sum of its proper divisors (144782).

165448 is a wasteful number, since it uses less digits than its factorization.

165448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20687 (or 20683 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 165448 is about 406.7529963012. The cubic root of 165448 is about 54.8976609344.

It can be divided in two parts, 165 and 448, that multiplied together give a triangular number (73920 = T₃₈₄).

The spelling of 165448 in words is "one hundred sixty-five thousand, four hundred forty-eight".