144920 has 16 divisors (see below), whose sum is σ = 326160. Its totient is φ = 57952.

The previous prime is 144917. The next prime is 144931. The reversal of 144920 is 29441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 144892 and 144901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772 + ... + 1851.

It is an arithmetic number, because the mean of its divisors is an integer number (20385).

2¹⁴⁴⁹²⁰ is an apocalyptic number.

144920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144920 is an abundant number, since it is smaller than the sum of its proper divisors (181240).

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

144920 is a wasteful number, since it uses less digits than its factorization.

144920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634 (or 3630 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 144920 is about 380.6835956539. The cubic root of 144920 is about 52.5262151767.

The spelling of 144920 in words is "one hundred forty-four thousand, nine hundred twenty".