144645 has 8 divisors (see below), whose sum is σ = 231456. Its totient is φ = 77136.

The previous prime is 144629. The next prime is 144659. The reversal of 144645 is 546441.

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

It is not a de Polignac number, because 144645 - 2⁴ = 144629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4807 + ... + 4836.

It is an arithmetic number, because the mean of its divisors is an integer number (28932).

2¹⁴⁴⁶⁴⁵ is an apocalyptic number.

144645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144645 is a deficient number, since it is larger than the sum of its proper divisors (86811).

144645 is an equidigital number, since it uses as much as digits as its factorization.

144645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651.

The product of its digits is 1920, while the sum is 24.

The square root of 144645 is about 380.3222317982. The cubic root of 144645 is about 52.4929695801.

The spelling of 144645 in words is "one hundred forty-four thousand, six hundred forty-five".