1224015115 has 4 divisors (see below), whose sum is σ = 1468818144. Its totient is φ = 979212088.

The previous prime is 1224015109. The next prime is 1224015119. The reversal of 1224015115 is 5115104221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224015115 - 2²⁹ = 687144203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224015119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122401507 + ... + 122401516.

It is an arithmetic number, because the mean of its divisors is an integer number (367204536).

Almost surely, 2^1224015115 is an apocalyptic number.

1224015115 is a deficient number, since it is larger than the sum of its proper divisors (244803029).

1224015115 is an equidigital number, since it uses as much as digits as its factorization.

1224015115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244803028.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1224015115 is about 34985.9273851645. The cubic root of 1224015115 is about 1069.7006514048.

Adding to 1224015115 its reverse (5115104221), we get a palindrome (6339119336).

The spelling of 1224015115 in words is "one billion, two hundred twenty-four million, fifteen thousand, one hundred fifteen".