1224313144 has 32 divisors (see below), whose sum is σ = 2342481120. Its totient is φ = 599687296.

The previous prime is 1224313117. The next prime is 1224313151. The reversal of 1224313144 is 4413134221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336117 + ... + 339739.

It is an arithmetic number, because the mean of its divisors is an integer number (73202535).

Almost surely, 2^1224313144 is an apocalyptic number.

It is an amenable number.

1224313144 is a deficient number, since it is larger than the sum of its proper divisors (1118167976).

1224313144 is a wasteful number, since it uses less digits than its factorization.

1224313144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479 (or 4475 counting only the distinct ones).

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

The square root of 1224313144 is about 34990.1863956167. The cubic root of 1224313144 is about 1069.7874629538.

Adding to 1224313144 its reverse (4413134221), we get a palindrome (5637447365).

The spelling of 1224313144 in words is "one billion, two hundred twenty-four million, three hundred thirteen thousand, one hundred forty-four".