12134621 has 4 divisors (see below), whose sum is σ = 12164700. Its totient is φ = 12104544.

The previous prime is 12134581. The next prime is 12134623. The reversal of 12134621 is 12643121.

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 5112121 + 7022500 = 2261^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 12134621 - 2¹⁴ = 12118237 is a prime.

It is a super-3 number, since 3×12134621³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12134593 and 12134602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134623) 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, 14426 + ... + 15243.

It is an arithmetic number, because the mean of its divisors is an integer number (3041175).

Almost surely, 2^12134621 is an apocalyptic number.

It is an amenable number.

12134621 is a deficient number, since it is larger than the sum of its proper divisors (30079).

12134621 is an equidigital number, since it uses as much as digits as its factorization.

12134621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30078.

The product of its digits is 288, while the sum is 20.

The square root of 12134621 is about 3483.4782904448. The cubic root of 12134621 is about 229.7957922808.

Adding to 12134621 its reverse (12643121), we get a palindrome (24777742).

The spelling of 12134621 in words is "twelve million, one hundred thirty-four thousand, six hundred twenty-one".