513284669 has 2 divisors, whose sum is σ = 513284670. Its totient is φ = 513284668.

The previous prime is 513284657. The next prime is 513284711. The reversal of 513284669 is 966482315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456463225 + 56821444 = 21365^2 + 7538^2 .

It is a cyclic number.

It is not a de Polignac number, because 513284669 - 2⁸ = 513284413 is a prime.

It is a super-2 number, since 2×513284669² = 526922302860879122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (510284669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256642334 + 256642335.

It is an arithmetic number, because the mean of its divisors is an integer number (256642335).

Almost surely, 2^513284669 is an apocalyptic number.

It is an amenable number.

513284669 is a deficient number, since it is larger than the sum of its proper divisors (1).

513284669 is an equidigital number, since it uses as much as digits as its factorization.

513284669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 513284669 is about 22655.7866559517. The cubic root of 513284669 is about 800.6685396004.

The spelling of 513284669 in words is "five hundred thirteen million, two hundred eighty-four thousand, six hundred sixty-nine".