144511489 has 4 divisors (see below), whose sum is σ = 145551280. Its totient is φ = 143471700.

The previous prime is 144511487. The next prime is 144511531. The reversal of 144511489 is 984115441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144511489 - 2¹ = 144511487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144511481) 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, 519687 + ... + 519964.

It is an arithmetic number, because the mean of its divisors is an integer number (36387820).

Almost surely, 2^144511489 is an apocalyptic number.

It is an amenable number.

144511489 is a deficient number, since it is larger than the sum of its proper divisors (1039791).

144511489 is a wasteful number, since it uses less digits than its factorization.

144511489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039790.

The product of its digits is 23040, while the sum is 37.

The square root of 144511489 is about 12021.2931500733. The cubic root of 144511489 is about 524.7681382805.

The spelling of 144511489 in words is "one hundred forty-four million, five hundred eleven thousand, four hundred eighty-nine".