1243245224 has 32 divisors (see below), whose sum is σ = 2658073320. Its totient is φ = 540051456.

The previous prime is 1243245187. The next prime is 1243245239. The reversal of 1243245224 is 4225423421.

It can be written as a sum of positive squares in 4 ways, for example, as 842044324 + 401200900 = 29018^2 + 20030^2 .

It is an unprimeable number.

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, 349829 + ... + 353364.

Almost surely, 2^1243245224 is an apocalyptic number.

It is an amenable number.

1243245224 is an abundant number, since it is smaller than the sum of its proper divisors (1414828096).

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

1243245224 is a wasteful number, since it uses less digits than its factorization.

1243245224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703229 (or 703225 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 1243245224 is about 35259.6826985156. The cubic root of 1243245224 is about 1075.2734761952.

Adding to 1243245224 its reverse (4225423421), we get a palindrome (5468668645).

The spelling of 1243245224 in words is "one billion, two hundred forty-three million, two hundred forty-five thousand, two hundred twenty-four".