144545217 has 8 divisors (see below), whose sum is σ = 202870560. Its totient is φ = 91291680.

The previous prime is 144545209. The next prime is 144545239. The reversal of 144545217 is 712545441.

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

It is not a de Polignac number, because 144545217 - 2³ = 144545209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144545287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267884 + ... + 1267997.

It is an arithmetic number, because the mean of its divisors is an integer number (25358820).

Almost surely, 2^144545217 is an apocalyptic number.

It is an amenable number.

144545217 is a deficient number, since it is larger than the sum of its proper divisors (58325343).

144545217 is a wasteful number, since it uses less digits than its factorization.

144545217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535903.

The product of its digits is 22400, while the sum is 33.

The square root of 144545217 is about 12022.6959123152. The cubic root of 144545217 is about 524.8089608778.

The spelling of 144545217 in words is "one hundred forty-four million, five hundred forty-five thousand, two hundred seventeen".