1232231549 has 2 divisors, whose sum is σ = 1232231550. Its totient is φ = 1232231548.

The previous prime is 1232231531. The next prime is 1232231599. The reversal of 1232231549 is 9451322321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1060804900 + 171426649 = 32570^2 + 13093^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232231549 - 2¹² = 1232227453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232231599) 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, 616115774 + 616115775.

It is an arithmetic number, because the mean of its divisors is an integer number (616115775).

Almost surely, 2^1232231549 is an apocalyptic number.

It is an amenable number.

1232231549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232231549 is an equidigital number, since it uses as much as digits as its factorization.

1232231549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 1232231549 is about 35103.1558267914. The cubic root of 1232231549 is about 1072.0888385781.

The spelling of 1232231549 in words is "one billion, two hundred thirty-two million, two hundred thirty-one thousand, five hundred forty-nine".