518276117 has 2 divisors, whose sum is σ = 518276118. Its totient is φ = 518276116.

The previous prime is 518276107. The next prime is 518276123. The reversal of 518276117 is 711672815.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383924836 + 134351281 = 19594^2 + 11591^2 .

It is a cyclic number.

It is not a de Polignac number, because 518276117 - 2¹⁸ = 518013973 is a prime.

It is a super-2 number, since 2×518276117² = 537220266905195378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518276107) 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, 259138058 + 259138059.

It is an arithmetic number, because the mean of its divisors is an integer number (259138059).

Almost surely, 2^518276117 is an apocalyptic number.

It is an amenable number.

518276117 is a deficient number, since it is larger than the sum of its proper divisors (1).

518276117 is an equidigital number, since it uses as much as digits as its factorization.

518276117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 38.

The square root of 518276117 is about 22765.6784875830. The cubic root of 518276117 is about 803.2555447521.

The spelling of 518276117 in words is "five hundred eighteen million, two hundred seventy-six thousand, one hundred seventeen".