6455745 has 12 divisors (see below), whose sum is σ = 11190036. Its totient is φ = 3443040.

The previous prime is 6455741. The next prime is 6455747. The reversal of 6455745 is 5475546.

It is a happy number.

6455745 is a `hidden beast` number, since 64 + 557 + 45 = 666.

6455745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3908529 + 2547216 = 1977^2 + 1596^2 .

It is not a de Polignac number, because 6455745 - 2² = 6455741 is a prime.

6455745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6455741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71686 + ... + 71775.

It is an arithmetic number, because the mean of its divisors is an integer number (932503).

Almost surely, 2^6455745 is an apocalyptic number.

It is an amenable number.

6455745 is a deficient number, since it is larger than the sum of its proper divisors (4734291).

6455745 is a wasteful number, since it uses less digits than its factorization.

6455745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143472 (or 143469 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 6455745 is about 2540.8158138677. The cubic root of 6455745 is about 186.2010486492.

The spelling of 6455745 in words is "six million, four hundred fifty-five thousand, seven hundred forty-five".