12381833 has 2 divisors, whose sum is σ = 12381834. Its totient is φ = 12381832.

The previous prime is 12381829. The next prime is 12381847. The reversal of 12381833 is 33818321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12369289 + 12544 = 3517^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 12381833 - 2² = 12381829 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12381796 and 12381805.

It is not a weakly prime, because it can be changed into another prime (12381823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190916 + 6190917.

It is an arithmetic number, because the mean of its divisors is an integer number (6190917).

Almost surely, 2^12381833 is an apocalyptic number.

It is an amenable number.

12381833 is a deficient number, since it is larger than the sum of its proper divisors (1).

12381833 is an equidigital number, since it uses as much as digits as its factorization.

12381833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 12381833 is about 3518.7828861696. The cubic root of 12381833 is about 231.3458148848.

The spelling of 12381833 in words is "twelve million, three hundred eighty-one thousand, eight hundred thirty-three".