13530133 has 2 divisors, whose sum is σ = 13530134. Its totient is φ = 13530132.

The previous prime is 13530131. The next prime is 13530151. The reversal of 13530133 is 33103531.

13530133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13490929 + 39204 = 3673^2 + 198^2 .

It is an emirp because it is prime and its reverse (33103531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13530133 - 2¹ = 13530131 is a prime.

Together with 13530131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13530133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13530131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765066 + 6765067.

It is an arithmetic number, because the mean of its divisors is an integer number (6765067).

Almost surely, 2^13530133 is an apocalyptic number.

It is an amenable number.

13530133 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530133 is an equidigital number, since it uses as much as digits as its factorization.

13530133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 13530133 is about 3678.3329104365. The cubic root of 13530133 is about 238.2871859838.

Adding to 13530133 its reverse (33103531), we get a palindrome (46633664).

The spelling of 13530133 in words is "thirteen million, five hundred thirty thousand, one hundred thirty-three".