6539495 has 8 divisors (see below), whose sum is σ = 7878816. Its totient is φ = 5210656.

The previous prime is 6539473. The next prime is 6539497. The reversal of 6539495 is 5949356.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6539495 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6539497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172 + ... + 3801.

It is an arithmetic number, because the mean of its divisors is an integer number (984852).

Almost surely, 2^6539495 is an apocalyptic number.

6539495 is a deficient number, since it is larger than the sum of its proper divisors (1339321).

6539495 is a wasteful number, since it uses less digits than its factorization.

6539495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5241.

The product of its digits is 145800, while the sum is 41.

The square root of 6539495 is about 2557.2436332896. The cubic root of 6539495 is about 187.0027833763.

Adding to 6539495 its sum of digits (41), we get a triangular number (6539536 = T₃₆₁₆).

The spelling of 6539495 in words is "six million, five hundred thirty-nine thousand, four hundred ninety-five".