1206323641 has 2 divisors, whose sum is σ = 1206323642. Its totient is φ = 1206323640.

The previous prime is 1206323611. The next prime is 1206323653. The reversal of 1206323641 is 1463236021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134005625 + 72318016 = 33675^2 + 8504^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206323641 - 2¹¹ = 1206321593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1206323611) 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, 603161820 + 603161821.

It is an arithmetic number, because the mean of its divisors is an integer number (603161821).

Almost surely, 2^1206323641 is an apocalyptic number.

It is an amenable number.

1206323641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206323641 is an equidigital number, since it uses as much as digits as its factorization.

1206323641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1206323641 is about 34732.1701164785. The cubic root of 1206323641 is about 1064.5219308019.

Adding to 1206323641 its reverse (1463236021), we get a palindrome (2669559662).

The spelling of 1206323641 in words is "one billion, two hundred six million, three hundred twenty-three thousand, six hundred forty-one".