519668113 has 2 divisors, whose sum is σ = 519668114. Its totient is φ = 519668112.

The previous prime is 519668101. The next prime is 519668117. The reversal of 519668113 is 311866915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388405264 + 131262849 = 19708^2 + 11457^2 .

It is a cyclic number.

It is not a de Polignac number, because 519668113 - 2²¹ = 517570961 is a prime.

It is not a weakly prime, because it can be changed into another prime (519668117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259834056 + 259834057.

It is an arithmetic number, because the mean of its divisors is an integer number (259834057).

Almost surely, 2^519668113 is an apocalyptic number.

It is an amenable number.

519668113 is a deficient number, since it is larger than the sum of its proper divisors (1).

519668113 is an equidigital number, since it uses as much as digits as its factorization.

519668113 is an odious number, because the sum of its binary digits is odd.

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

The square root of 519668113 is about 22796.2302365983. The cubic root of 519668113 is about 803.9740349733.

The spelling of 519668113 in words is "five hundred nineteen million, six hundred sixty-eight thousand, one hundred thirteen".