144919 has 4 divisors (see below), whose sum is σ = 145696. Its totient is φ = 144144.

The previous prime is 144917. The next prime is 144931. The reversal of 144919 is 919441.

144919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 919441 = 67 ⋅13723.

It is a cyclic number.

It is not a de Polignac number, because 144919 - 2¹ = 144917 is a prime.

It is a super-2 number, since 2×144919² = 42003033122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144917) 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, 82 + ... + 544.

It is an arithmetic number, because the mean of its divisors is an integer number (36424).

2¹⁴⁴⁹¹⁹ is an apocalyptic number.

144919 is a deficient number, since it is larger than the sum of its proper divisors (777).

144919 is an equidigital number, since it uses as much as digits as its factorization.

144919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its digits is 1296, while the sum is 28.

The square root of 144919 is about 380.6822822250. The cubic root of 144919 is about 52.5260943599.

The spelling of 144919 in words is "one hundred forty-four thousand, nine hundred nineteen".