518754139 has 2 divisors, whose sum is σ = 518754140. Its totient is φ = 518754138.

The previous prime is 518754101. The next prime is 518754149. The reversal of 518754139 is 931457815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 518754139 - 2⁷ = 518754011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518754095 and 518754104.

It is not a weakly prime, because it can be changed into another prime (518754149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259377069 + 259377070.

It is an arithmetic number, because the mean of its divisors is an integer number (259377070).

Almost surely, 2^518754139 is an apocalyptic number.

518754139 is a deficient number, since it is larger than the sum of its proper divisors (1).

518754139 is an equidigital number, since it uses as much as digits as its factorization.

518754139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 518754139 is about 22776.1748105339. The cubic root of 518754139 is about 803.5024246291.

The spelling of 518754139 in words is "five hundred eighteen million, seven hundred fifty-four thousand, one hundred thirty-nine".