513046481 has 2 divisors, whose sum is σ = 513046482. Its totient is φ = 513046480.

The previous prime is 513046433. The next prime is 513046507. The reversal of 513046481 is 184640315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506970256 + 6076225 = 22516^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 513046481 - 2²⁶ = 445937617 is a prime.

It is a super-2 number, since 2×513046481² = 526433383332966722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513046411) 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, 256523240 + 256523241.

It is an arithmetic number, because the mean of its divisors is an integer number (256523241).

Almost surely, 2^513046481 is an apocalyptic number.

It is an amenable number.

513046481 is a deficient number, since it is larger than the sum of its proper divisors (1).

513046481 is an equidigital number, since it uses as much as digits as its factorization.

513046481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 513046481 is about 22650.5293757122. The cubic root of 513046481 is about 800.5446712699.

Adding to 513046481 its reverse (184640315), we get a palindrome (697686796).

The spelling of 513046481 in words is "five hundred thirteen million, forty-six thousand, four hundred eighty-one".