513215471 has 2 divisors, whose sum is σ = 513215472. Its totient is φ = 513215470.

The previous prime is 513215411. The next prime is 513215473. The reversal of 513215471 is 174512315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513215471 - 2¹⁰ = 513214447 is a prime.

It is a super-3 number, since 3×513215471³ (a number of 27 digits) contains 333 as substring.

Together with 513215473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513215473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256607735 + 256607736.

It is an arithmetic number, because the mean of its divisors is an integer number (256607736).

Almost surely, 2^513215471 is an apocalyptic number.

513215471 is a deficient number, since it is larger than the sum of its proper divisors (1).

513215471 is an equidigital number, since it uses as much as digits as its factorization.

513215471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 513215471 is about 22654.2594449697. The cubic root of 513215471 is about 800.6325575194.

Adding to 513215471 its reverse (174512315), we get a palindrome (687727786).

The spelling of 513215471 in words is "five hundred thirteen million, two hundred fifteen thousand, four hundred seventy-one".