513001243 has 2 divisors, whose sum is σ = 513001244. Its totient is φ = 513001242.

The previous prime is 513001217. The next prime is 513001259. The reversal of 513001243 is 342100315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513001243 - 2²⁵ = 479446811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513001243.

It is not a weakly prime, because it can be changed into another prime (513001543) 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, 256500621 + 256500622.

It is an arithmetic number, because the mean of its divisors is an integer number (256500622).

Almost surely, 2^513001243 is an apocalyptic number.

513001243 is a deficient number, since it is larger than the sum of its proper divisors (1).

513001243 is an equidigital number, since it uses as much as digits as its factorization.

513001243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 513001243 is about 22649.5307456910. The cubic root of 513001243 is about 800.5211411703.

Adding to 513001243 its reverse (342100315), we get a palindrome (855101558).

The spelling of 513001243 in words is "five hundred thirteen million, one thousand, two hundred forty-three".