513344243 has 2 divisors, whose sum is σ = 513344244. Its totient is φ = 513344242.

The previous prime is 513344233. The next prime is 513344263. The reversal of 513344243 is 342443315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513344243 - 2¹² = 513340147 is a prime.

It is not a weakly prime, because it can be changed into another prime (513344233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256672121 + 256672122.

It is an arithmetic number, because the mean of its divisors is an integer number (256672122).

Almost surely, 2^513344243 is an apocalyptic number.

513344243 is a deficient number, since it is larger than the sum of its proper divisors (1).

513344243 is an equidigital number, since it uses as much as digits as its factorization.

513344243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 29.

The square root of 513344243 is about 22657.1013812447. The cubic root of 513344243 is about 800.6995147331.

Adding to 513344243 its reverse (342443315), we get a palindrome (855787558).

The spelling of 513344243 in words is "five hundred thirteen million, three hundred forty-four thousand, two hundred forty-three".