6518140229 has 2 divisors, whose sum is σ = 6518140230. Its totient is φ = 6518140228.

The previous prime is 6518140219. The next prime is 6518140243. The reversal of 6518140229 is 9220418156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6518140225 + 4 = 80735^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 6518140229 - 2²⁴ = 6501363013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6518140192 and 6518140201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6518140219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3259070114 + 3259070115.

It is an arithmetic number, because the mean of its divisors is an integer number (3259070115).

Almost surely, 2^6518140229 is an apocalyptic number.

It is an amenable number.

6518140229 is a deficient number, since it is larger than the sum of its proper divisors (1).

6518140229 is an equidigital number, since it uses as much as digits as its factorization.

6518140229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 6518140229 is about 80735.0000247724. Note that the first 4 decimals coincide. The cubic root of 6518140229 is about 1867.9900839842.

The spelling of 6518140229 in words is "six billion, five hundred eighteen million, one hundred forty thousand, two hundred twenty-nine".