513039223 has 2 divisors, whose sum is σ = 513039224. Its totient is φ = 513039222.

The previous prime is 513039157. The next prime is 513039229. The reversal of 513039223 is 322930315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513039223 - 2²¹ = 510942071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513039191 and 513039200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513039229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256519611 + 256519612.

It is an arithmetic number, because the mean of its divisors is an integer number (256519612).

Almost surely, 2^513039223 is an apocalyptic number.

513039223 is a deficient number, since it is larger than the sum of its proper divisors (1).

513039223 is an equidigital number, since it uses as much as digits as its factorization.

513039223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 513039223 is about 22650.3691581396. The cubic root of 513039223 is about 800.5408961859.

Adding to 513039223 its reverse (322930315), we get a palindrome (835969538).

The spelling of 513039223 in words is "five hundred thirteen million, thirty-nine thousand, two hundred twenty-three".