12389149 has 4 divisors (see below), whose sum is σ = 12509536. Its totient is φ = 12268764.

The previous prime is 12389147. The next prime is 12389173. The reversal of 12389149 is 94198321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94198321 = 7 ⋅13456903.

It is a cyclic number.

It is not a de Polignac number, because 12389149 - 2¹ = 12389147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389147) 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, 60039 + ... + 60244.

It is an arithmetic number, because the mean of its divisors is an integer number (3127384).

Almost surely, 2^12389149 is an apocalyptic number.

It is an amenable number.

12389149 is a deficient number, since it is larger than the sum of its proper divisors (120387).

12389149 is a wasteful number, since it uses less digits than its factorization.

12389149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120386.

The product of its digits is 15552, while the sum is 37.

The square root of 12389149 is about 3519.8222966508. The cubic root of 12389149 is about 231.3913706799.

The spelling of 12389149 in words is "twelve million, three hundred eighty-nine thousand, one hundred forty-nine".