12233813 has 2 divisors, whose sum is σ = 12233814. Its totient is φ = 12233812.

The previous prime is 12233803. The next prime is 12233821. The reversal of 12233813 is 31833221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9746884 + 2486929 = 3122^2 + 1577^2 .

It is a cyclic number.

It is not a de Polignac number, because 12233813 - 2¹⁸ = 11971669 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12233803) 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, 6116906 + 6116907.

It is an arithmetic number, because the mean of its divisors is an integer number (6116907).

Almost surely, 2^12233813 is an apocalyptic number.

It is an amenable number.

12233813 is a deficient number, since it is larger than the sum of its proper divisors (1).

12233813 is an equidigital number, since it uses as much as digits as its factorization.

12233813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 12233813 is about 3497.6868070197. The cubic root of 12233813 is about 230.4202336128.

The spelling of 12233813 in words is "twelve million, two hundred thirty-three thousand, eight hundred thirteen".