144885 has 16 divisors (see below), whose sum is σ = 249984. Its totient is φ = 71232.

The previous prime is 144883. The next prime is 144887. The reversal of 144885 is 588441.

It is an interprime number because it is at equal distance from previous prime (144883) and next prime (144887).

It is not a de Polignac number, because 144885 - 2¹ = 144883 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144885.

It is not an unprimeable number, because it can be changed into a prime (144883) 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 15 ways as a sum of consecutive naturals, for example, 177 + ... + 566.

It is an arithmetic number, because the mean of its divisors is an integer number (15624).

2¹⁴⁴⁸⁸⁵ is an apocalyptic number.

144885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144885 is a deficient number, since it is larger than the sum of its proper divisors (105099).

144885 is a wasteful number, since it uses less digits than its factorization.

144885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 5120, while the sum is 30.

The square root of 144885 is about 380.6376229434. The cubic root of 144885 is about 52.5219862560.

Subtracting 144885 from its reverse (588441), we obtain a square (443556 = 666²).

The spelling of 144885 in words is "one hundred forty-four thousand, eight hundred eighty-five".