144523 has 4 divisors (see below), whose sum is σ = 147928. Its totient is φ = 141120.

The previous prime is 144511. The next prime is 144539. The reversal of 144523 is 325441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325441 = 503 ⋅647.

It is a cyclic number.

It is not a de Polignac number, because 144523 - 2¹⁷ = 13451 is a prime.

It is a d-powerful number, because it can be written as 1 + 4 + 5⁷ + 4⁸ + 2⁷ + 3⁶ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 144523.

It is not an unprimeable number, because it can be changed into a prime (144563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (36982).

2¹⁴⁴⁵²³ is an apocalyptic number.

144523 is a deficient number, since it is larger than the sum of its proper divisors (3405).

144523 is an equidigital number, since it uses as much as digits as its factorization.

144523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

The product of its digits is 480, while the sum is 19.

The square root of 144523 is about 380.1618076556. The cubic root of 144523 is about 52.4782071303.

Adding to 144523 its reverse (325441), we get a palindrome (469964).

The spelling of 144523 in words is "one hundred forty-four thousand, five hundred twenty-three".