6812513 has 2 divisors, whose sum is σ = 6812514. Its totient is φ = 6812512.

The previous prime is 6812483. The next prime is 6812527. The reversal of 6812513 is 3152186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5798464 + 1014049 = 2408^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 6812513 - 2¹⁰ = 6811489 is a prime.

It is not a weakly prime, because it can be changed into another prime (6812573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406256 + 3406257.

It is an arithmetic number, because the mean of its divisors is an integer number (3406257).

Almost surely, 2^6812513 is an apocalyptic number.

It is an amenable number.

6812513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6812513 is an equidigital number, since it uses as much as digits as its factorization.

6812513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 6812513 is about 2610.0791175748. The cubic root of 6812513 is about 189.5697837544.

Adding to 6812513 its reverse (3152186), we get a palindrome (9964699).

The spelling of 6812513 in words is "six million, eight hundred twelve thousand, five hundred thirteen".