1243255224 has 32 divisors (see below), whose sum is σ = 3119137920. Its totient is φ = 412951776.

The previous prime is 1243255219. The next prime is 1243255229. The reversal of 1243255224 is 4225523421.

It is an interprime number because it is at equal distance from previous prime (1243255219) and next prime (1243255229).

It is a junction number, because it is equal to n+sod(n) for n = 1243255191 and 1243255200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243255229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 84732 + ... + 98315.

It is an arithmetic number, because the mean of its divisors is an integer number (97473060).

Almost surely, 2^1243255224 is an apocalyptic number.

It is an amenable number.

1243255224 is an abundant number, since it is smaller than the sum of its proper divisors (1875882696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243255224 is a wasteful number, since it uses less digits than its factorization.

1243255224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183339 (or 183335 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 1243255224 is about 35259.8245032502. The cubic root of 1243255224 is about 1075.2763591625.

Adding to 1243255224 its reverse (4225523421), we get a palindrome (5468778645).

The spelling of 1243255224 in words is "one billion, two hundred forty-three million, two hundred fifty-five thousand, two hundred twenty-four".