1224541530 has 128 divisors (see below), whose sum is σ = 3457555200. Its totient is φ = 307867392.

The previous prime is 1224541517. The next prime is 1224541537. The reversal of 1224541530 is 351454221.

1224541530 is a `hidden beast` number, since 1 + 2 + 245 + 415 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1224541494 and 1224541503.

It is not an unprimeable number, because it can be changed into a prime (1224541537) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 334872 + ... + 338508.

It is an arithmetic number, because the mean of its divisors is an integer number (27012150).

Almost surely, 2^1224541530 is an apocalyptic number.

1224541530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224541530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728777600).

1224541530 is an abundant number, since it is smaller than the sum of its proper divisors (2233013670).

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

1224541530 is a wasteful number, since it uses less digits than its factorization.

1224541530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1224541530 is about 34993.4498156441. The cubic root of 1224541530 is about 1069.8539789673.

Adding to 1224541530 its reverse (351454221), we get a palindrome (1575995751).

The spelling of 1224541530 in words is "one billion, two hundred twenty-four million, five hundred forty-one thousand, five hundred thirty".