12389455 has 8 divisors (see below), whose sum is σ = 16011072. Its totient is φ = 9149088.

The previous prime is 12389437. The next prime is 12389473. The reversal of 12389455 is 55498321.

12389455 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12389437) and next prime (12389473).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12389455 - 2¹⁷ = 12258383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 95239 + ... + 95368.

It is an arithmetic number, because the mean of its divisors is an integer number (2001384).

Almost surely, 2^12389455 is an apocalyptic number.

12389455 is a deficient number, since it is larger than the sum of its proper divisors (3621617).

12389455 is a wasteful number, since it uses less digits than its factorization.

12389455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190625.

The product of its digits is 43200, while the sum is 37.

The square root of 12389455 is about 3519.8657644859. The cubic root of 12389455 is about 231.3932757119.

The spelling of 12389455 in words is "twelve million, three hundred eighty-nine thousand, four hundred fifty-five".