144855 has 32 divisors (see below), whose sum is σ = 273600. Its totient is φ = 72576.

The previous prime is 144847. The next prime is 144883. The reversal of 144855 is 558441.

It is not a de Polignac number, because 144855 - 2³ = 144847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (3200) is a multiple of the sum of its prime factors (80).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3897 + ... + 3933.

It is an arithmetic number, because the mean of its divisors is an integer number (8550).

2¹⁴⁴⁸⁵⁵ is an apocalyptic number.

144855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144855 is a deficient number, since it is larger than the sum of its proper divisors (128745).

144855 is a wasteful number, since it uses less digits than its factorization.

144855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 74 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 144855 is about 380.5982133432. The cubic root of 144855 is about 52.5183609248.

It can be divided in two parts, 144 and 855, that added together give a palindrome (999).

The spelling of 144855 in words is "one hundred forty-four thousand, eight hundred fifty-five".