144247265 has 8 divisors (see below), whose sum is σ = 173174760. Its totient is φ = 115345792.

The previous prime is 144247219. The next prime is 144247273. The reversal of 144247265 is 562742441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11444689 + 132802576 = 3383^2 + 11524^2 .

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 144247265 - 2⁸ = 144247009 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, 9101 + ... + 19269.

It is an arithmetic number, because the mean of its divisors is an integer number (21646845).

Almost surely, 2^144247265 is an apocalyptic number.

It is an amenable number.

144247265 is a deficient number, since it is larger than the sum of its proper divisors (28927495).

144247265 is a wasteful number, since it uses less digits than its factorization.

144247265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13011.

The product of its digits is 53760, while the sum is 35.

The square root of 144247265 is about 12010.2982893848. The cubic root of 144247265 is about 524.4481154467.

The spelling of 144247265 in words is "one hundred forty-four million, two hundred forty-seven thousand, two hundred sixty-five".