1123223149 has 2 divisors, whose sum is σ = 1123223150. Its totient is φ = 1123223148.

The previous prime is 1123223141. The next prime is 1123223183. The reversal of 1123223149 is 9413223211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122719049 + 504100 = 33507^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123223149 - 2³ = 1123223141 is a prime.

It is a super-3 number, since 3×1123223149³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123223141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561611574 + 561611575.

It is an arithmetic number, because the mean of its divisors is an integer number (561611575).

Almost surely, 2^1123223149 is an apocalyptic number.

It is an amenable number.

1123223149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123223149 is an equidigital number, since it uses as much as digits as its factorization.

1123223149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 1123223149 is about 33514.5214645831. The cubic root of 1123223149 is about 1039.4940675883.

The spelling of 1123223149 in words is "one billion, one hundred twenty-three million, two hundred twenty-three thousand, one hundred forty-nine".