513545113 has 2 divisors, whose sum is σ = 513545114. Its totient is φ = 513545112.

The previous prime is 513545083. The next prime is 513545161. The reversal of 513545113 is 311545315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490533904 + 23011209 = 22148^2 + 4797^2 .

It is a cyclic number.

It is not a de Polignac number, because 513545113 - 2⁹ = 513544601 is a prime.

It is not a weakly prime, because it can be changed into another prime (513545713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256772556 + 256772557.

It is an arithmetic number, because the mean of its divisors is an integer number (256772557).

Almost surely, 2^513545113 is an apocalyptic number.

It is an amenable number.

513545113 is a deficient number, since it is larger than the sum of its proper divisors (1).

513545113 is an equidigital number, since it uses as much as digits as its factorization.

513545113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 28.

The square root of 513545113 is about 22661.5337742175. The cubic root of 513545113 is about 800.8039381878.

The spelling of 513545113 in words is "five hundred thirteen million, five hundred forty-five thousand, one hundred thirteen".