1224631105 has 4 divisors (see below), whose sum is σ = 1469557332. Its totient is φ = 979704880.

The previous prime is 1224631103. The next prime is 1224631117. The reversal of 1224631105 is 5011364221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5011364221 = 9323 ⋅537527.

It can be written as a sum of positive squares in 2 ways, for example, as 975875121 + 248755984 = 31239^2 + 15772^2 .

It is not a de Polignac number, because 1224631105 - 2¹ = 1224631103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224631105.

It is not an unprimeable number, because it can be changed into a prime (1224631103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122463106 + ... + 122463115.

It is an arithmetic number, because the mean of its divisors is an integer number (367389333).

Almost surely, 2^1224631105 is an apocalyptic number.

It is an amenable number.

1224631105 is a deficient number, since it is larger than the sum of its proper divisors (244926227).

1224631105 is an equidigital number, since it uses as much as digits as its factorization.

1224631105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244926226.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1224631105 is about 34994.7296746239. The cubic root of 1224631105 is about 1069.8800648754.

Adding to 1224631105 its reverse (5011364221), we get a palindrome (6235995326).

The spelling of 1224631105 in words is "one billion, two hundred twenty-four million, six hundred thirty-one thousand, one hundred five".