12533399 has 6 divisors (see below), whose sum is σ = 12641040. Its totient is φ = 12426456.

The previous prime is 12533377. The next prime is 12533441. The reversal of 12533399 is 99333521.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12533399 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 5 ways as a sum of consecutive naturals, for example, 52322 + ... + 52560.

It is an arithmetic number, because the mean of its divisors is an integer number (2106840).

Almost surely, 2^12533399 is an apocalyptic number.

12533399 is a deficient number, since it is larger than the sum of its proper divisors (107641).

12533399 is an frugal number, since it uses more digits than its factorization.

12533399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 468 counting only the distinct ones).

The product of its digits is 21870, while the sum is 35.

The square root of 12533399 is about 3540.2540869265. The cubic root of 12533399 is about 232.2859570928.

The spelling of 12533399 in words is "twelve million, five hundred thirty-three thousand, three hundred ninety-nine".