518063197 has 2 divisors, whose sum is σ = 518063198. Its totient is φ = 518063196.

The previous prime is 518063191. The next prime is 518063209. The reversal of 518063197 is 791360815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517153081 + 910116 = 22741^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 518063197 - 2⁷ = 518063069 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518063191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259031598 + 259031599.

It is an arithmetic number, because the mean of its divisors is an integer number (259031599).

Almost surely, 2^518063197 is an apocalyptic number.

It is an amenable number.

518063197 is a deficient number, since it is larger than the sum of its proper divisors (1).

518063197 is an equidigital number, since it uses as much as digits as its factorization.

518063197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 518063197 is about 22761.0016695224. The cubic root of 518063197 is about 803.1455309382.

The spelling of 518063197 in words is "five hundred eighteen million, sixty-three thousand, one hundred ninety-seven".