6513165 has 12 divisors (see below), whose sum is σ = 11289564. Its totient is φ = 3473664.

The previous prime is 6513127. The next prime is 6513173. The reversal of 6513165 is 5613156.

It is a happy number.

6513165 is a `hidden beast` number, since 651 + 3 + 1 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 5391684 = 1059^2 + 2322^2 .

It is not a de Polignac number, because 6513165 - 2¹⁶ = 6447629 is a prime.

6513165 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72324 + ... + 72413.

It is an arithmetic number, because the mean of its divisors is an integer number (940797).

Almost surely, 2^6513165 is an apocalyptic number.

It is an amenable number.

6513165 is a deficient number, since it is larger than the sum of its proper divisors (4776399).

6513165 is a wasteful number, since it uses less digits than its factorization.

6513165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144748 (or 144745 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 6513165 is about 2552.0903197183. The cubic root of 6513165 is about 186.7514690508.

Subtracting from 6513165 its reverse (5613156), we obtain a palindrome (900009).

The spelling of 6513165 in words is "six million, five hundred thirteen thousand, one hundred sixty-five".