6541522159 has 2 divisors, whose sum is σ = 6541522160. Its totient is φ = 6541522158.

The previous prime is 6541522093. The next prime is 6541522213. The reversal of 6541522159 is 9512251456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6541522159 - 2²¹ = 6539425007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6541522459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3270761079 + 3270761080.

It is an arithmetic number, because the mean of its divisors is an integer number (3270761080).

Almost surely, 2^6541522159 is an apocalyptic number.

6541522159 is a deficient number, since it is larger than the sum of its proper divisors (1).

6541522159 is an equidigital number, since it uses as much as digits as its factorization.

6541522159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 40.

The square root of 6541522159 is about 80879.6770455966. The cubic root of 6541522159 is about 1870.2210419597.

The spelling of 6541522159 in words is "six billion, five hundred forty-one million, five hundred twenty-two thousand, one hundred fifty-nine".