1224240131 has 8 divisors (see below), whose sum is σ = 1228911264. Its totient is φ = 1219578880.

The previous prime is 1224240119. The next prime is 1224240139. The reversal of 1224240131 is 1310424221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224240131 is a prime.

It is a super-2 number, since 2×1224240131² = 2997527796701794322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224240139) 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, 320525 + ... + 324321.

It is an arithmetic number, because the mean of its divisors is an integer number (153613908).

Almost surely, 2^1224240131 is an apocalyptic number.

1224240131 is a deficient number, since it is larger than the sum of its proper divisors (4671133).

1224240131 is an equidigital number, since it uses as much as digits as its factorization.

1224240131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1224240131 is about 34989.1430446646. The cubic root of 1224240131 is about 1069.7661966231.

Adding to 1224240131 its reverse (1310424221), we get a palindrome (2534664352).

The spelling of 1224240131 in words is "one billion, two hundred twenty-four million, two hundred forty thousand, one hundred thirty-one".