513212671 has 4 divisors (see below), whose sum is σ = 513272200. Its totient is φ = 513153144.

The previous prime is 513212659. The next prime is 513212683. The reversal of 513212671 is 176212315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (513212659) and next prime (513212683).

It is a cyclic number.

It is not a de Polignac number, because 513212671 - 2¹⁹ = 512688383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513212071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14076 + ... + 34993.

It is an arithmetic number, because the mean of its divisors is an integer number (128318050).

Almost surely, 2^513212671 is an apocalyptic number.

513212671 is a deficient number, since it is larger than the sum of its proper divisors (59529).

513212671 is a wasteful number, since it uses less digits than its factorization.

513212671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59528.

The product of its digits is 2520, while the sum is 28.

The square root of 513212671 is about 22654.1976463524. The cubic root of 513212671 is about 800.6311014869.

Adding to 513212671 its reverse (176212315), we get a palindrome (689424986).

The spelling of 513212671 in words is "five hundred thirteen million, two hundred twelve thousand, six hundred seventy-one".