518012197 has 2 divisors, whose sum is σ = 518012198. Its totient is φ = 518012196.

The previous prime is 518012191. The next prime is 518012203. The reversal of 518012197 is 791210815.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (518012191) and next prime (518012203).

It can be written as a sum of positive squares in only one way, i.e., 392594596 + 125417601 = 19814^2 + 11199^2 .

It is a cyclic number.

It is not a de Polignac number, because 518012197 - 2²³ = 509623589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518012191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259006098 + 259006099.

It is an arithmetic number, because the mean of its divisors is an integer number (259006099).

Almost surely, 2^518012197 is an apocalyptic number.

It is an amenable number.

518012197 is a deficient number, since it is larger than the sum of its proper divisors (1).

518012197 is an equidigital number, since it uses as much as digits as its factorization.

518012197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 518012197 is about 22759.8813046114. The cubic root of 518012197 is about 803.1191752307.

The spelling of 518012197 in words is "five hundred eighteen million, twelve thousand, one hundred ninety-seven".