519472123 has 2 divisors, whose sum is σ = 519472124. Its totient is φ = 519472122.

The previous prime is 519472097. The next prime is 519472159. The reversal of 519472123 is 321274915.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 519472123 - 2⁹ = 519471611 is a prime.

It is not a weakly prime, because it can be changed into another prime (519472223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259736061 + 259736062.

It is an arithmetic number, because the mean of its divisors is an integer number (259736062).

Almost surely, 2^519472123 is an apocalyptic number.

519472123 is a deficient number, since it is larger than the sum of its proper divisors (1).

519472123 is an equidigital number, since it uses as much as digits as its factorization.

519472123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 519472123 is about 22791.9310941394. The cubic root of 519472123 is about 803.8729507875.

The spelling of 519472123 in words is "five hundred nineteen million, four hundred seventy-two thousand, one hundred twenty-three".