6505147 has 4 divisors (see below), whose sum is σ = 7096536. Its totient is φ = 5913760.

The previous prime is 6505141. The next prime is 6505153. The reversal of 6505147 is 7415056.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6505141) and next prime (6505153).

It is a cyclic number.

It is not a de Polignac number, because 6505147 - 2¹¹ = 6503099 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (6505141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295678 + ... + 295699.

It is an arithmetic number, because the mean of its divisors is an integer number (1774134).

Almost surely, 2^6505147 is an apocalyptic number.

6505147 is a deficient number, since it is larger than the sum of its proper divisors (591389).

6505147 is a wasteful number, since it uses less digits than its factorization.

6505147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591388.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 6505147 is about 2550.5189667987. The cubic root of 6505147 is about 186.6748044213.

Subtracting 6505147 from its reverse (7415056), we obtain a palindrome (909909).

The spelling of 6505147 in words is "six million, five hundred five thousand, one hundred forty-seven".