1122185243 has 2 divisors, whose sum is σ = 1122185244. Its totient is φ = 1122185242.

The previous prime is 1122185237. The next prime is 1122185261. The reversal of 1122185243 is 3425812211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122185243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122185263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561092621 + 561092622.

It is an arithmetic number, because the mean of its divisors is an integer number (561092622).

Almost surely, 2^1122185243 is an apocalyptic number.

1122185243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122185243 is an equidigital number, since it uses as much as digits as its factorization.

1122185243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 1122185243 is about 33499.0334636688. The cubic root of 1122185243 is about 1039.1737899964.

Adding to 1122185243 its reverse (3425812211), we get a palindrome (4547997454).

The spelling of 1122185243 in words is "one billion, one hundred twenty-two million, one hundred eighty-five thousand, two hundred forty-three".