12521333 has 8 divisors (see below), whose sum is σ = 14463360. Its totient is φ = 10713280.

The previous prime is 12521329. The next prime is 12521339. The reversal of 12521333 is 33312521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12521333 - 2² = 12521329 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33293 + ... + 33666.

It is an arithmetic number, because the mean of its divisors is an integer number (1807920).

Almost surely, 2^12521333 is an apocalyptic number.

It is an amenable number.

12521333 is a deficient number, since it is larger than the sum of its proper divisors (1942027).

12521333 is a wasteful number, since it uses less digits than its factorization.

12521333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66987.

The product of its digits is 540, while the sum is 20.

The square root of 12521333 is about 3538.5495616142. The cubic root of 12521333 is about 232.2113919980.

Adding to 12521333 its reverse (33312521), we get a palindrome (45833854).

The spelling of 12521333 in words is "twelve million, five hundred twenty-one thousand, three hundred thirty-three".