6504149 has 16 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 5800704.

The previous prime is 6504143. The next prime is 6504181. The reversal of 6504149 is 9414056.

It is a cyclic number.

It is not a de Polignac number, because 6504149 - 2⁴ = 6504133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504143) 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, 38864 + ... + 39030.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^6504149 is an apocalyptic number.

It is an amenable number.

6504149 is a deficient number, since it is larger than the sum of its proper divisors (753451).

6504149 is a wasteful number, since it uses less digits than its factorization.

6504149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6504149 is about 2550.3233128370. The cubic root of 6504149 is about 186.6652575716.

The spelling of 6504149 in words is "six million, five hundred four thousand, one hundred forty-nine".