518094139 has 2 divisors, whose sum is σ = 518094140. Its totient is φ = 518094138.

The previous prime is 518094119. The next prime is 518094151. The reversal of 518094139 is 931490815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 518094139 - 2¹³ = 518085947 is a prime.

It is not a weakly prime, because it can be changed into another prime (518094119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259047069 + 259047070.

It is an arithmetic number, because the mean of its divisors is an integer number (259047070).

Almost surely, 2^518094139 is an apocalyptic number.

518094139 is a deficient number, since it is larger than the sum of its proper divisors (1).

518094139 is an equidigital number, since it uses as much as digits as its factorization.

518094139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 518094139 is about 22761.6813746261. The cubic root of 518094139 is about 803.1615202579.

The spelling of 518094139 in words is "five hundred eighteen million, ninety-four thousand, one hundred thirty-nine".