144799538 has 12 divisors (see below), whose sum is σ = 235192698. Its totient is φ = 66830400.

The previous prime is 144799519. The next prime is 144799549. The reversal of 144799538 is 835997441.

It can be written as a sum of positive squares in 3 ways, for example, as 78978769 + 65820769 = 8887^2 + 8113^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213863 + ... + 214538.

Almost surely, 2^144799538 is an apocalyptic number.

144799538 is a deficient number, since it is larger than the sum of its proper divisors (90393160).

144799538 is a wasteful number, since it uses less digits than its factorization.

144799538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428429 (or 428416 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 144799538 is about 12033.2679684282. The cubic root of 144799538 is about 525.1165733578.

The spelling of 144799538 in words is "one hundred forty-four million, seven hundred ninety-nine thousand, five hundred thirty-eight".