144385305 has 16 divisors (see below), whose sum is σ = 231577920. Its totient is φ = 76818368.

The previous prime is 144385289. The next prime is 144385309. The reversal of 144385305 is 503583441.

It is a cyclic number.

It is not a de Polignac number, because 144385305 - 2⁴ = 144385289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144385309) 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, 5202 + ... + 17771.

It is an arithmetic number, because the mean of its divisors is an integer number (14473620).

Almost surely, 2^144385305 is an apocalyptic number.

144385305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144385305 is a deficient number, since it is larger than the sum of its proper divisors (87192615).

144385305 is a wasteful number, since it uses less digits than its factorization.

144385305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23400.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 144385305 is about 12016.0436500539. The cubic root of 144385305 is about 524.6153554448.

The spelling of 144385305 in words is "one hundred forty-four million, three hundred eighty-five thousand, three hundred five".