1123242225 has 48 divisors (see below), whose sum is σ = 2125673472. Its totient is φ = 512688960.

The previous prime is 1123242199. The next prime is 1123242257. The reversal of 1123242225 is 5222423211.

It is not a de Polignac number, because 1123242225 - 2⁵ = 1123242193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123242195 and 1123242204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462364 + ... + 464786.

It is an arithmetic number, because the mean of its divisors is an integer number (44284864).

Almost surely, 2^1123242225 is an apocalyptic number.

1123242225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123242225 is a deficient number, since it is larger than the sum of its proper divisors (1002431247).

1123242225 is a wasteful number, since it uses less digits than its factorization.

1123242225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3321 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 1123242225 is about 33514.8060564283. The cubic root of 1123242225 is about 1039.4999522239.

Adding to 1123242225 its reverse (5222423211), we get a palindrome (6345665436).

The spelling of 1123242225 in words is "one billion, one hundred twenty-three million, two hundred forty-two thousand, two hundred twenty-five".