513045103 has 2 divisors, whose sum is σ = 513045104. Its totient is φ = 513045102.

The previous prime is 513045097. The next prime is 513045121. The reversal of 513045103 is 301540315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513045103 - 2⁹ = 513044591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513040103) 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, 256522551 + 256522552.

It is an arithmetic number, because the mean of its divisors is an integer number (256522552).

Almost surely, 2^513045103 is an apocalyptic number.

513045103 is a deficient number, since it is larger than the sum of its proper divisors (1).

513045103 is an equidigital number, since it uses as much as digits as its factorization.

513045103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 513045103 is about 22650.4989569766. The cubic root of 513045103 is about 800.5439545372.

Adding to 513045103 its reverse (301540315), we get a palindrome (814585418).

The spelling of 513045103 in words is "five hundred thirteen million, forty-five thousand, one hundred three".