6549147 has 16 divisors (see below), whose sum is σ = 10584960. Its totient is φ = 3969000.

The previous prime is 6549139. The next prime is 6549161. The reversal of 6549147 is 7419456.

It is not a de Polignac number, because 6549147 - 2³ = 6549139 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10729 + ... + 11322.

It is an arithmetic number, because the mean of its divisors is an integer number (661560).

Almost surely, 2^6549147 is an apocalyptic number.

6549147 is a deficient number, since it is larger than the sum of its proper divisors (4035813).

6549147 is a wasteful number, since it uses less digits than its factorization.

6549147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22071 (or 22065 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 6549147 is about 2559.1301256482. The cubic root of 6549147 is about 187.0947407106.

It can be divided in two parts, 654 and 9147, that added together give a square (9801 = 99²).

The spelling of 6549147 in words is "six million, five hundred forty-nine thousand, one hundred forty-seven".