1223150449 has 2 divisors, whose sum is σ = 1223150450. Its totient is φ = 1223150448.

The previous prime is 1223150399. The next prime is 1223150471. The reversal of 1223150449 is 9440513221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804743424 + 418407025 = 28368^2 + 20455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223150449 - 2⁹ = 1223149937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223150449.

It is not a weakly prime, because it can be changed into another prime (1223150749) 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 as a sum of consecutive naturals, namely, 611575224 + 611575225.

It is an arithmetic number, because the mean of its divisors is an integer number (611575225).

Almost surely, 2^1223150449 is an apocalyptic number.

It is an amenable number.

1223150449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223150449 is an equidigital number, since it uses as much as digits as its factorization.

1223150449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1223150449 is about 34973.5678620297. The cubic root of 1223150449 is about 1069.4487068947.

The spelling of 1223150449 in words is "one billion, two hundred twenty-three million, one hundred fifty thousand, four hundred forty-nine".