12133517 has 12 divisors (see below), whose sum is σ = 13446300. Its totient is φ = 10940160.

The previous prime is 12133487. The next prime is 12133519. The reversal of 12133517 is 71533121.

It can be written as a sum of positive squares in 2 ways, for example, as 2579236 + 9554281 = 1606^2 + 3091^2 .

It is not a de Polignac number, because 12133517 - 2¹⁸ = 11871373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12133492 and 12133501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17693 + ... + 18365.

It is an arithmetic number, because the mean of its divisors is an integer number (1120525).

Almost surely, 2^12133517 is an apocalyptic number.

It is an amenable number.

12133517 is a deficient number, since it is larger than the sum of its proper divisors (1312783).

12133517 is a wasteful number, since it uses less digits than its factorization.

12133517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 833 counting only the distinct ones).

The product of its digits is 630, while the sum is 23.

The square root of 12133517 is about 3483.3198245352. The cubic root of 12133517 is about 229.7888231784.

Adding to 12133517 its reverse (71533121), we get a palindrome (83666638).

The spelling of 12133517 in words is "twelve million, one hundred thirty-three thousand, five hundred seventeen".