13512133 has 4 divisors (see below), whose sum is σ = 13545580. Its totient is φ = 13478688.

The previous prime is 13512131. The next prime is 13512143. The reversal of 13512133 is 33121531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5026564 + 8485569 = 2242^2 + 2913^2 .

It is a cyclic number.

It is not a de Polignac number, because 13512133 - 2¹ = 13512131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13512133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13512131) 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 in 3 ways as a sum of consecutive naturals, for example, 16110 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (3386395).

Almost surely, 2^13512133 is an apocalyptic number.

It is an amenable number.

13512133 is a deficient number, since it is larger than the sum of its proper divisors (33447).

13512133 is an equidigital number, since it uses as much as digits as its factorization.

13512133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33446.

The product of its digits is 270, while the sum is 19.

The square root of 13512133 is about 3675.8853355348. The cubic root of 13512133 is about 238.1814695358.

Adding to 13512133 its reverse (33121531), we get a palindrome (46633664).

The spelling of 13512133 in words is "thirteen million, five hundred twelve thousand, one hundred thirty-three".