12133347 has 4 divisors (see below), whose sum is σ = 16177800. Its totient is φ = 8088896.

The previous prime is 12133333. The next prime is 12133367. The reversal of 12133347 is 74333121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74333121 = 3 ⋅24777707.

It is a cyclic number.

It is not a de Polignac number, because 12133347 - 2⁶ = 12133283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12133367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2022222 + ... + 2022227.

It is an arithmetic number, because the mean of its divisors is an integer number (4044450).

Almost surely, 2^12133347 is an apocalyptic number.

12133347 is a deficient number, since it is larger than the sum of its proper divisors (4044453).

12133347 is an equidigital number, since it uses as much as digits as its factorization.

12133347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044452.

The product of its digits is 1512, while the sum is 24.

The square root of 12133347 is about 3483.2954224412. The cubic root of 12133347 is about 229.7877500001.

Adding to 12133347 its reverse (74333121), we get a palindrome (86466468).

It can be divided in two parts, 1213 and 3347, that added together give a triangular number (4560 = T₉₅).

The spelling of 12133347 in words is "twelve million, one hundred thirty-three thousand, three hundred forty-seven".