144287273 has 16 divisors (see below), whose sum is σ = 166353600. Its totient is φ = 124027200.

The previous prime is 144287263. The next prime is 144287281. The reversal of 144287273 is 372782441.

It is a cyclic number.

It is not a de Polignac number, because 144287273 - 2¹⁸ = 144025129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144287233) 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, 9623 + ... + 19523.

It is an arithmetic number, because the mean of its divisors is an integer number (10397100).

Almost surely, 2^144287273 is an apocalyptic number.

144287273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144287273 is a deficient number, since it is larger than the sum of its proper divisors (22066327).

144287273 is a wasteful number, since it uses less digits than its factorization.

144287273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992.

The product of its digits is 75264, while the sum is 38.

The square root of 144287273 is about 12011.9637445340. The cubic root of 144287273 is about 524.4965974304.

The spelling of 144287273 in words is "one hundred forty-four million, two hundred eighty-seven thousand, two hundred seventy-three".