518128097 has 2 divisors, whose sum is σ = 518128098. Its totient is φ = 518128096.

The previous prime is 518128087. The next prime is 518128099. The reversal of 518128097 is 790821815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509134096 + 8994001 = 22564^2 + 2999^2 .

It is a cyclic number.

It is not a de Polignac number, because 518128097 - 2¹⁰ = 518127073 is a prime.

Together with 518128099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (518128099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259064048 + 259064049.

It is an arithmetic number, because the mean of its divisors is an integer number (259064049).

Almost surely, 2^518128097 is an apocalyptic number.

It is an amenable number.

518128097 is a deficient number, since it is larger than the sum of its proper divisors (1).

518128097 is an equidigital number, since it uses as much as digits as its factorization.

518128097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 518128097 is about 22762.4273090547. The cubic root of 518128097 is about 803.1790673669.

The spelling of 518128097 in words is "five hundred eighteen million, one hundred twenty-eight thousand, ninety-seven".