12533303 has 4 divisors (see below), whose sum is σ = 12587328. Its totient is φ = 12479280.

The previous prime is 12533299. The next prime is 12533309. The reversal of 12533303 is 30333521.

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

It is a cyclic number.

It is not a de Polignac number, because 12533303 - 2² = 12533299 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26663 + ... + 27128.

It is an arithmetic number, because the mean of its divisors is an integer number (3146832).

Almost surely, 2^12533303 is an apocalyptic number.

12533303 is a deficient number, since it is larger than the sum of its proper divisors (54025).

12533303 is an equidigital number, since it uses as much as digits as its factorization.

12533303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54024.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 12533303 is about 3540.2405285517. The cubic root of 12533303 is about 232.2853640238.

Adding to 12533303 its reverse (30333521), we get a palindrome (42866824).

The spelling of 12533303 in words is "twelve million, five hundred thirty-three thousand, three hundred three".