144609 has 16 divisors (see below), whose sum is σ = 211200. Its totient is φ = 87696.

The previous prime is 144593. The next prime is 144611. The reversal of 144609 is 906441.

It is not a de Polignac number, because 144609 - 2⁴ = 144593 is a prime.

144609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (144629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422 + ... + 2480.

It is an arithmetic number, because the mean of its divisors is an integer number (13200).

2¹⁴⁴⁶⁰⁹ is an apocalyptic number.

144609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

144609 is a deficient number, since it is larger than the sum of its proper divisors (66591).

144609 is a wasteful number, since it uses less digits than its factorization.

144609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 144609 is about 380.2749005654. The cubic root of 144609 is about 52.4886143110.

The spelling of 144609 in words is "one hundred forty-four thousand, six hundred nine".