513077317 has 2 divisors, whose sum is σ = 513077318. Its totient is φ = 513077316.

The previous prime is 513077297. The next prime is 513077347. The reversal of 513077317 is 713770315.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379119841 + 133957476 = 19471^2 + 11574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513077317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513077347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256538658 + 256538659.

It is an arithmetic number, because the mean of its divisors is an integer number (256538659).

Almost surely, 2^513077317 is an apocalyptic number.

It is an amenable number.

513077317 is a deficient number, since it is larger than the sum of its proper divisors (1).

513077317 is an equidigital number, since it uses as much as digits as its factorization.

513077317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15435, while the sum is 34.

The square root of 513077317 is about 22651.2100559771. The cubic root of 513077317 is about 800.5607095184.

The spelling of 513077317 in words is "five hundred thirteen million, seventy-seven thousand, three hundred seventeen".