144861 has 8 divisors (see below), whose sum is σ = 195360. Its totient is φ = 95472.

The previous prime is 144847. The next prime is 144883. The reversal of 144861 is 168441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144861 - 2⁵ = 144829 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

144861 is a lucky number.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 548.

It is an arithmetic number, because the mean of its divisors is an integer number (24420).

2¹⁴⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

144861 is a deficient number, since it is larger than the sum of its proper divisors (50499).

144861 is a wasteful number, since it uses less digits than its factorization.

144861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555.

The product of its digits is 768, while the sum is 24.

The square root of 144861 is about 380.6060955897. The cubic root of 144861 is about 52.5190860311.

The spelling of 144861 in words is "one hundred forty-four thousand, eight hundred sixty-one".