6468545 has 8 divisors (see below), whose sum is σ = 7839720. Its totient is φ = 5123200.

The previous prime is 6468541. The next prime is 6468559. The reversal of 6468545 is 5458646.

It can be written as a sum of positive squares in 4 ways, for example, as 1597696 + 4870849 = 1264^2 + 2207^2 .

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

It is not a de Polignac number, because 6468545 - 2² = 6468541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6468499 and 6468508.

It is not an unprimeable number, because it can be changed into a prime (6468541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5900 + ... + 6909.

It is an arithmetic number, because the mean of its divisors is an integer number (979965).

Almost surely, 2^6468545 is an apocalyptic number.

It is an amenable number.

6468545 is a deficient number, since it is larger than the sum of its proper divisors (1371175).

6468545 is a wasteful number, since it uses less digits than its factorization.

6468545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12915.

The product of its digits is 115200, while the sum is 38.

The square root of 6468545 is about 2543.3334425513. Note that the first 3 decimals coincide. The cubic root of 6468545 is about 186.3240295476.

The spelling of 6468545 in words is "six million, four hundred sixty-eight thousand, five hundred forty-five".