1244143144 has 8 divisors (see below), whose sum is σ = 2332768410. Its totient is φ = 622071568.

The previous prime is 1244143111. The next prime is 1244143171. The reversal of 1244143144 is 4413414421.

It can be written as a sum of positive squares in only one way, i.e., 1206172900 + 37970244 = 34730^2 + 6162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 77758939 + ... + 77758954.

Almost surely, 2^1244143144 is an apocalyptic number.

It is an amenable number.

1244143144 is a deficient number, since it is larger than the sum of its proper divisors (1088625266).

1244143144 is a wasteful number, since it uses less digits than its factorization.

1244143144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155517899 (or 155517895 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 1244143144 is about 35272.4133566162. The cubic root of 1244143144 is about 1075.5322819914.

Adding to 1244143144 its reverse (4413414421), we get a palindrome (5657557565).

The spelling of 1244143144 in words is "one billion, two hundred forty-four million, one hundred forty-three thousand, one hundred forty-four".