513004231 has 2 divisors, whose sum is σ = 513004232. Its totient is φ = 513004230.

The previous prime is 513004211. The next prime is 513004243. The reversal of 513004231 is 132400315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513004231 - 2⁹ = 513003719 is a prime.

It is a super-2 number, since 2×513004231² = 526346682047802722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513004199 and 513004208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513004211) 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, 256502115 + 256502116.

It is an arithmetic number, because the mean of its divisors is an integer number (256502116).

Almost surely, 2^513004231 is an apocalyptic number.

513004231 is a deficient number, since it is larger than the sum of its proper divisors (1).

513004231 is an equidigital number, since it uses as much as digits as its factorization.

513004231 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 513004231 is about 22649.5967072264. The cubic root of 513004231 is about 800.5226953917.

Adding to 513004231 its reverse (132400315), we get a palindrome (645404546).

The spelling of 513004231 in words is "five hundred thirteen million, four thousand, two hundred thirty-one".