12133645 has 8 divisors (see below), whose sum is σ = 14807520. Its totient is φ = 9542160.

The previous prime is 12133643. The next prime is 12133651. The reversal of 12133645 is 54633121.

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

It is not a de Polignac number, because 12133645 - 2¹ = 12133643 is a prime.

It is a super-3 number, since 3×12133645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133643) 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 7 ways as a sum of consecutive naturals, for example, 20271 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (1850940).

Almost surely, 2^12133645 is an apocalyptic number.

It is an amenable number.

12133645 is a deficient number, since it is larger than the sum of its proper divisors (2673875).

12133645 is an equidigital number, since it uses as much as digits as its factorization.

12133645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41195.

The product of its digits is 2160, while the sum is 25.

The square root of 12133645 is about 3483.3381977637. The cubic root of 12133645 is about 229.7896312120.

Adding to 12133645 its reverse (54633121), we get a palindrome (66766766).

The spelling of 12133645 in words is "twelve million, one hundred thirty-three thousand, six hundred forty-five".