144126242 has 18 divisors (see below), whose sum is σ = 234457587. Its totient is φ = 66417936.

The previous prime is 144126233. The next prime is 144126247. The reversal of 144126242 is 242621441.

It can be written as a sum of positive squares in 5 ways, for example, as 1825201 + 142301041 = 1351^2 + 11929^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8489.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (144126247) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 220388 + ... + 221040.

Almost surely, 2^144126242 is an apocalyptic number.

144126242 is a deficient number, since it is larger than the sum of its proper divisors (90331345).

144126242 is an frugal number, since it uses more digits than its factorization.

144126242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 668 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 144126242 is about 12005.2589309852. The cubic root of 144126242 is about 524.3014043046.

Adding to 144126242 its reverse (242621441), we get a palindrome (386747683).

The spelling of 144126242 in words is "one hundred forty-four million, one hundred twenty-six thousand, two hundred forty-two".