6500134221 has 32 divisors (see below), whose sum is σ = 10063549440. Its totient is φ = 3655328256.

The previous prime is 6500134189. The next prime is 6500134237. The reversal of 6500134221 is 1224310056.

It is not a de Polignac number, because 6500134221 - 2⁵ = 6500134189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6500134191 and 6500134200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540134221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355710 + ... + 373536.

It is an arithmetic number, because the mean of its divisors is an integer number (314485920).

Almost surely, 2^6500134221 is an apocalyptic number.

It is an amenable number.

6500134221 is a deficient number, since it is larger than the sum of its proper divisors (3563415219).

6500134221 is a wasteful number, since it uses less digits than its factorization.

6500134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18113.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 6500134221 is about 80623.4098819940. The cubic root of 6500134221 is about 1866.2684239966.

Adding to 6500134221 its reverse (1224310056), we get a palindrome (7724444277).

The spelling of 6500134221 in words is "six billion, five hundred million, one hundred thirty-four thousand, two hundred twenty-one".