12133245 has 32 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 6174720.

The previous prime is 12133243. The next prime is 12133271. The reversal of 12133245 is 54233121.

It is not a de Polignac number, because 12133245 - 2¹ = 12133243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44971 + ... + 45239.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^12133245 is an apocalyptic number.

12133245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12133245 is a deficient number, since it is larger than the sum of its proper divisors (8188035).

12133245 is a wasteful number, since it uses less digits than its factorization.

12133245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its digits is 720, while the sum is 21.

The square root of 12133245 is about 3483.2807811028. The cubic root of 12133245 is about 229.7871060883.

Adding to 12133245 its reverse (54233121), we get a palindrome (66366366).

The spelling of 12133245 in words is "twelve million, one hundred thirty-three thousand, two hundred forty-five".