12385455 has 8 divisors (see below), whose sum is σ = 19816752. Its totient is φ = 6605568.

The previous prime is 12385447. The next prime is 12385463. The reversal of 12385455 is 55458321.

Added to its reverse (55458321) it gives a triangular number (67843776 = T₁₁₆₄₈).

It is an interprime number because it is at equal distance from previous prime (12385447) and next prime (12385463).

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

It is not a de Polignac number, because 12385455 - 2³ = 12385447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412834 + ... + 412863.

It is an arithmetic number, because the mean of its divisors is an integer number (2477094).

Almost surely, 2^12385455 is an apocalyptic number.

12385455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12385455 is a deficient number, since it is larger than the sum of its proper divisors (7431297).

12385455 is an equidigital number, since it uses as much as digits as its factorization.

12385455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825705.

The product of its digits is 24000, while the sum is 33.

The square root of 12385455 is about 3519.2975151300. The cubic root of 12385455 is about 231.3683708572.

Adding to 12385455 its reverse (55458321), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 12385455 in words is "twelve million, three hundred eighty-five thousand, four hundred fifty-five".