12154133 has 4 divisors (see below), whose sum is σ = 12869100. Its totient is φ = 11439168.

The previous prime is 12154127. The next prime is 12154147. The reversal of 12154133 is 33145121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6360484 + 5793649 = 2522^2 + 2407^2 .

It is a cyclic number.

It is not a de Polignac number, because 12154133 - 2⁴ = 12154117 is a prime.

It is a super-3 number, since 3×12154133³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154123) 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, 357458 + ... + 357491.

It is an arithmetic number, because the mean of its divisors is an integer number (3217275).

Almost surely, 2^12154133 is an apocalyptic number.

It is an amenable number.

12154133 is a deficient number, since it is larger than the sum of its proper divisors (714967).

12154133 is an equidigital number, since it uses as much as digits as its factorization.

12154133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714966.

The product of its digits is 360, while the sum is 20.

The square root of 12154133 is about 3486.2778145179. The cubic root of 12154133 is about 229.9188938978.

Adding to 12154133 its reverse (33145121), we get a palindrome (45299254).

The spelling of 12154133 in words is "twelve million, one hundred fifty-four thousand, one hundred thirty-three".