513305747 has 2 divisors, whose sum is σ = 513305748. Its totient is φ = 513305746.

The previous prime is 513305717. The next prime is 513305759. The reversal of 513305747 is 747503315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513305747 - 2¹² = 513301651 is a prime.

It is not a weakly prime, because it can be changed into another prime (513305717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256652873 + 256652874.

It is an arithmetic number, because the mean of its divisors is an integer number (256652874).

Almost surely, 2^513305747 is an apocalyptic number.

513305747 is a deficient number, since it is larger than the sum of its proper divisors (1).

513305747 is an equidigital number, since it uses as much as digits as its factorization.

513305747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 513305747 is about 22656.2518303448. The cubic root of 513305747 is about 800.6794992501.

The spelling of 513305747 in words is "five hundred thirteen million, three hundred five thousand, seven hundred forty-seven".