144520 has 16 divisors (see below), whose sum is σ = 325260. Its totient is φ = 57792.

The previous prime is 144511. The next prime is 144539. The reversal of 144520 is 25441.

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 27556 = 342^2 + 166^2 .

It is a plaindrome in base 16.

It is a nialpdrome in base 8 and base 11.

It is a junction number, because it is equal to n+sod(n) for n = 144494 and 144503.

It is an unprimeable number.

144520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767 + ... + 1846.

2¹⁴⁴⁵²⁰ is an apocalyptic number.

144520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144520 is an abundant number, since it is smaller than the sum of its proper divisors (180740).

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

144520 is a wasteful number, since it uses less digits than its factorization.

144520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624 (or 3620 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 144520 is about 380.1578619468. The cubic root of 144520 is about 52.4778440146.

Adding to 144520 its reverse (25441), we get a palindrome (169961).

It can be divided in two parts, 1445 and 20, that multiplied together give a square (28900 = 170²).

The spelling of 144520 in words is "one hundred forty-four thousand, five hundred twenty".