12455745 has 8 divisors (see below), whose sum is σ = 19929216. Its totient is φ = 6643056.

The previous prime is 12455741. The next prime is 12455749. The reversal of 12455745 is 54755421.

12455745 is digitally balanced in base 2, 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 (12455741) and next prime (12455749).

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

It is not a de Polignac number, because 12455745 - 2² = 12455741 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12455741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415177 + ... + 415206.

It is an arithmetic number, because the mean of its divisors is an integer number (2491152).

Almost surely, 2^12455745 is an apocalyptic number.

12455745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12455745 is a deficient number, since it is larger than the sum of its proper divisors (7473471).

12455745 is an equidigital number, since it uses as much as digits as its factorization.

12455745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830391.

The product of its digits is 28000, while the sum is 33.

The square root of 12455745 is about 3529.2697544960. The cubic root of 12455745 is about 231.8052331378.

It can be divided in two parts, 124557 and 45, that multiplied together give a palindrome (5605065).

The spelling of 12455745 in words is "twelve million, four hundred fifty-five thousand, seven hundred forty-five".