12533131 has 8 divisors (see below), whose sum is σ = 14291424. Its totient is φ = 10888320.

The previous prime is 12533123. The next prime is 12533149. The reversal of 12533131 is 13133521.

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 12533131 - 2³ = 12533123 is a prime.

It is a super-2 number, since 2×12533131² = 314158745326322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12533099 and 12533108.

It is not an unprimeable number, because it can be changed into a prime (12533111) 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, 28135 + ... + 28576.

It is an arithmetic number, because the mean of its divisors is an integer number (1786428).

Almost surely, 2^12533131 is an apocalyptic number.

12533131 is a deficient number, since it is larger than the sum of its proper divisors (1758293).

12533131 is a wasteful number, since it uses less digits than its factorization.

12533131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56741.

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

The square root of 12533131 is about 3540.2162363336. The cubic root of 12533131 is about 232.2843014344.

Adding to 12533131 its reverse (13133521), we get a palindrome (25666652).

The spelling of 12533131 in words is "twelve million, five hundred thirty-three thousand, one hundred thirty-one".