12345455 has 8 divisors (see below), whose sum is σ = 15066000. Its totient is φ = 9708736.

The previous prime is 12345439. The next prime is 12345479. The reversal of 12345455 is 55454321.

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

It is a cyclic number.

It is not a de Polignac number, because 12345455 - 2⁴ = 12345439 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20630 + ... + 21219.

It is an arithmetic number, because the mean of its divisors is an integer number (1883250).

Almost surely, 2^12345455 is an apocalyptic number.

12345455 is a deficient number, since it is larger than the sum of its proper divisors (2720545).

12345455 is an equidigital number, since it uses as much as digits as its factorization.

12345455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41913.

The product of its digits is 12000, while the sum is 29.

The square root of 12345455 is about 3513.6099669713. The cubic root of 12345455 is about 231.1190268817.

Adding to 12345455 its reverse (55454321), we get a palindrome (67799776).

The spelling of 12345455 in words is "twelve million, three hundred forty-five thousand, four hundred fifty-five".