1224205135 has 8 divisors (see below), whose sum is σ = 1469983680. Its totient is φ = 978739104.

The previous prime is 1224205133. The next prime is 1224205181. The reversal of 1224205135 is 5315024221.

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

It is a cyclic number.

It is not a de Polignac number, because 1224205135 - 2¹ = 1224205133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224205133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69420 + ... + 85249.

It is an arithmetic number, because the mean of its divisors is an integer number (183747960).

Almost surely, 2^1224205135 is an apocalyptic number.

1224205135 is a deficient number, since it is larger than the sum of its proper divisors (245778545).

1224205135 is a wasteful number, since it uses less digits than its factorization.

1224205135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156257.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1224205135 is about 34988.6429431037. The cubic root of 1224205135 is about 1069.7560031178.

Adding to 1224205135 its reverse (5315024221), we get a palindrome (6539229356).

The spelling of 1224205135 in words is "one billion, two hundred twenty-four million, two hundred five thousand, one hundred thirty-five".