6509147 has 12 divisors (see below), whose sum is σ = 7014336. Its totient is φ = 6038400.

The previous prime is 6509143. The next prime is 6509177. The reversal of 6509147 is 7419056.

It is a happy number.

6509147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6509147 - 2² = 6509143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6509143) 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, 29078 + ... + 29300.

It is an arithmetic number, because the mean of its divisors is an integer number (584528).

Almost surely, 2^6509147 is an apocalyptic number.

6509147 is a deficient number, since it is larger than the sum of its proper divisors (505189).

6509147 is a wasteful number, since it uses less digits than its factorization.

6509147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 6509147 is about 2551.3030004294. The cubic root of 6509147 is about 186.7130585516.

Subtracting 6509147 from its reverse (7419056), we obtain a palindrome (909909).

The spelling of 6509147 in words is "six million, five hundred nine thousand, one hundred forty-seven".