144342209 has 8 divisors (see below), whose sum is σ = 157697280. Its totient is φ = 131026000.

The previous prime is 144342197. The next prime is 144342239. The reversal of 144342209 is 902243441.

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

It is a cyclic number.

It is not a de Polignac number, because 144342209 - 2¹² = 144338113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144342239) 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, 1649 + ... + 17070.

It is an arithmetic number, because the mean of its divisors is an integer number (19712160).

Almost surely, 2^144342209 is an apocalyptic number.

It is an amenable number.

144342209 is a deficient number, since it is larger than the sum of its proper divisors (13355071).

144342209 is a wasteful number, since it uses less digits than its factorization.

144342209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19431.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 144342209 is about 12014.2502471024. The cubic root of 144342209 is about 524.5631546728.

The spelling of 144342209 in words is "one hundred forty-four million, three hundred forty-two thousand, two hundred nine".