145044 has 48 divisors (see below), whose sum is σ = 403200. Its totient is φ = 44928.

The previous prime is 145043. The next prime is 145063. The reversal of 145044 is 440541.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145044.

It is not an unprimeable number, because it can be changed into a prime (145043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (8400).

2¹⁴⁵⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201600).

145044 is an abundant number, since it is smaller than the sum of its proper divisors (258156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145044 is a wasteful number, since it uses less digits than its factorization.

145044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 145044 is about 380.8464257414. The cubic root of 145044 is about 52.5411921615.

Adding to 145044 its reverse (440541), we get a palindrome (585585).

The spelling of 145044 in words is "one hundred forty-five thousand, forty-four".