1331144224 has 24 divisors (see below), whose sum is σ = 2622076380. Its totient is φ = 665220096.

The previous prime is 1331144219. The next prime is 1331144239. The reversal of 1331144224 is 4224411331.

It can be written as a sum of positive squares in 2 ways, for example, as 1317690000 + 13454224 = 36300^2 + 3668^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56892 + ... + 76804.

Almost surely, 2^1331144224 is an apocalyptic number.

It is an amenable number.

1331144224 is a deficient number, since it is larger than the sum of its proper divisors (1290932156).

1331144224 is a wasteful number, since it uses less digits than its factorization.

1331144224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22012 (or 22004 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1331144224 is about 36484.8492391020. The cubic root of 1331144224 is about 1100.0397296945.

Adding to 1331144224 its reverse (4224411331), we get a palindrome (5555555555).

The spelling of 1331144224 in words is "one billion, three hundred thirty-one million, one hundred forty-four thousand, two hundred twenty-four".