144487 has 4 divisors (see below), whose sum is σ = 165136. Its totient is φ = 123840.

The previous prime is 144481. The next prime is 144497. The reversal of 144487 is 784441.

144487 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.

It is a cyclic number.

It is not a de Polignac number, because 144487 - 2³ = 144479 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144481) 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, 10314 + ... + 10327.

It is an arithmetic number, because the mean of its divisors is an integer number (41284).

2¹⁴⁴⁴⁸⁷ is an apocalyptic number.

144487 is a deficient number, since it is larger than the sum of its proper divisors (20649).

144487 is an equidigital number, since it uses as much as digits as its factorization.

144487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20648.

The product of its digits is 3584, while the sum is 28.

The square root of 144487 is about 380.1144564470. The cubic root of 144487 is about 52.4738494102.

The spelling of 144487 in words is "one hundred forty-four thousand, four hundred eighty-seven".