144136447 has 8 divisors (see below), whose sum is σ = 177398816. Its totient is φ = 114041952.

The previous prime is 144136441. The next prime is 144136457. The reversal of 144136447 is 744631441.

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 144136447 - 2³ = 144136439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144136441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791868 + ... + 792049.

It is an arithmetic number, because the mean of its divisors is an integer number (22174852).

Almost surely, 2^144136447 is an apocalyptic number.

144136447 is a deficient number, since it is larger than the sum of its proper divisors (33262369).

144136447 is a wasteful number, since it uses less digits than its factorization.

144136447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583937.

The product of its digits is 32256, while the sum is 34.

The square root of 144136447 is about 12005.6839455318. The cubic root of 144136447 is about 524.3137785710.

Adding to 144136447 its reverse (744631441), we get a palindrome (888767888).

The spelling of 144136447 in words is "one hundred forty-four million, one hundred thirty-six thousand, four hundred forty-seven".