12402133 has 2 divisors, whose sum is σ = 12402134. Its totient is φ = 12402132.

The previous prime is 12402113. The next prime is 12402149. The reversal of 12402133 is 33120421.

It is a happy number.

12402133 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12402149) can be obtained adding 12402133 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10614564 + 1787569 = 3258^2 + 1337^2 .

It is an emirp because it is prime and its reverse (33120421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12402133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12402113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201066 + 6201067.

It is an arithmetic number, because the mean of its divisors is an integer number (6201067).

Almost surely, 2^12402133 is an apocalyptic number.

It is an amenable number.

12402133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402133 is an equidigital number, since it uses as much as digits as its factorization.

12402133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12402133 is about 3521.6662249566. Note that the first 3 decimals coincide. The cubic root of 12402133 is about 231.4721762467.

Adding to 12402133 its reverse (33120421), we get a palindrome (45522554).

The spelling of 12402133 in words is "twelve million, four hundred two thousand, one hundred thirty-three".