144304985 has 16 divisors (see below), whose sum is σ = 189231552. Its totient is φ = 104769600.

The previous prime is 144304949. The next prime is 144304987. The reversal of 144304985 is 589403441.

It is not a de Polignac number, because 144304985 - 2¹⁰ = 144303961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144304987) 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, 36107 + ... + 39903.

It is an arithmetic number, because the mean of its divisors is an integer number (11826972).

Almost surely, 2^144304985 is an apocalyptic number.

It is an amenable number.

144304985 is a deficient number, since it is larger than the sum of its proper divisors (44926567).

144304985 is a wasteful number, since it uses less digits than its factorization.

144304985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4504.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 144304985 is about 12012.7009868722. The cubic root of 144304985 is about 524.5180580981.

The spelling of 144304985 in words is "one hundred forty-four million, three hundred four thousand, nine hundred eighty-five".