518129207 has 2 divisors, whose sum is σ = 518129208. Its totient is φ = 518129206.

The previous prime is 518129197. The next prime is 518129233. The reversal of 518129207 is 702921815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 518129207 - 2¹⁴ = 518112823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518129707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259064603 + 259064604.

It is an arithmetic number, because the mean of its divisors is an integer number (259064604).

Almost surely, 2^518129207 is an apocalyptic number.

518129207 is a deficient number, since it is larger than the sum of its proper divisors (1).

518129207 is an equidigital number, since it uses as much as digits as its factorization.

518129207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 518129207 is about 22762.4516913271. The cubic root of 518129207 is about 803.1796409240.

The spelling of 518129207 in words is "five hundred eighteen million, one hundred twenty-nine thousand, two hundred seven".