513532031 has 2 divisors, whose sum is σ = 513532032. Its totient is φ = 513532030.

The previous prime is 513532013. The next prime is 513532043. The reversal of 513532031 is 130235315.

Together with previous prime (513532013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513532031 - 2¹⁴ = 513515647 is a prime.

It is a super-2 number, since 2×513532031² = 527430293725969922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513531988 and 513532006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513532001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256766015 + 256766016.

It is an arithmetic number, because the mean of its divisors is an integer number (256766016).

Almost surely, 2^513532031 is an apocalyptic number.

513532031 is a deficient number, since it is larger than the sum of its proper divisors (1).

513532031 is an equidigital number, since it uses as much as digits as its factorization.

513532031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 513532031 is about 22661.2451334873. The cubic root of 513532031 is about 800.7971382619.

Adding to 513532031 its reverse (130235315), we get a palindrome (643767346).

The spelling of 513532031 in words is "five hundred thirteen million, five hundred thirty-two thousand, thirty-one".