144285865 has 8 divisors (see below), whose sum is σ = 173275200. Its totient is φ = 115340592.

The previous prime is 144285859. The next prime is 144285881. The reversal of 144285865 is 568582441.

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 144285865 - 2⁷ = 144285737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319 + ... + 17308.

It is an arithmetic number, because the mean of its divisors is an integer number (21659400).

Almost surely, 2^144285865 is an apocalyptic number.

It is an amenable number.

144285865 is a deficient number, since it is larger than the sum of its proper divisors (28989335).

144285865 is a wasteful number, since it uses less digits than its factorization.

144285865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22031.

The product of its digits is 307200, while the sum is 43.

The square root of 144285865 is about 12011.9051361555. The cubic root of 144285865 is about 524.4948913580.

The spelling of 144285865 in words is "one hundred forty-four million, two hundred eighty-five thousand, eight hundred sixty-five".