513242017 has 2 divisors, whose sum is σ = 513242018. Its totient is φ = 513242016.

The previous prime is 513242011. The next prime is 513242027. The reversal of 513242017 is 710242315.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502477056 + 10764961 = 22416^2 + 3281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513242017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513241982 and 513242000.

It is not a weakly prime, because it can be changed into another prime (513242011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256621008 + 256621009.

It is an arithmetic number, because the mean of its divisors is an integer number (256621009).

Almost surely, 2^513242017 is an apocalyptic number.

It is an amenable number.

513242017 is a deficient number, since it is larger than the sum of its proper divisors (1).

513242017 is an equidigital number, since it uses as much as digits as its factorization.

513242017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 513242017 is about 22654.8453316283. The cubic root of 513242017 is about 800.6463614846.

The spelling of 513242017 in words is "five hundred thirteen million, two hundred forty-two thousand, seventeen".