144281279 has 4 divisors (see below), whose sum is σ = 144674784. Its totient is φ = 143887776.

The previous prime is 144281257. The next prime is 144281299. The reversal of 144281279 is 972182441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144281279 - 2²⁰ = 143232703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144281219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196202 + ... + 196935.

It is an arithmetic number, because the mean of its divisors is an integer number (36168696).

Almost surely, 2^144281279 is an apocalyptic number.

144281279 is a deficient number, since it is larger than the sum of its proper divisors (393505).

144281279 is an equidigital number, since it uses as much as digits as its factorization.

144281279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393504.

The product of its digits is 32256, while the sum is 38.

The square root of 144281279 is about 12011.7142406902. The cubic root of 144281279 is about 524.4893344287.

The spelling of 144281279 in words is "one hundred forty-four million, two hundred eighty-one thousand, two hundred seventy-nine".